Two Che English Medium All 1 Mark Updated

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HIGHER SECONDARY - SECOND YEAR CHEMISTRY

ONE MARK QUESTION & ANSWER

Compiled by: Mr.R.ANNAMALAI M.Sc(Chem).,M.Sc (Psy).,M.Phil.,B.Ed., B.Music., P.G. TEACHER IN CHEMISTRY GOVT. GIRLS HR.SEC.SCHOOL, GINGEE. VILLUPURAM DIST. www.kalvisolai.comemail:[email protected] R.ANNAMALAI

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Higher Secondary - Second Year BLUE PRINT - CHEMISTRY

Time : 180 Mins. Maximum Marks : 150

KNOWLEDGE UNDERSTANDING APPLICATION SKILL TOTAL S.No OBJECTIVES E/LA SA VSA O E/LA SA VSA O E/LA SA VSA O E/LA SA VSA O 1 Atomic Structure - - - 1(1) - - 1(3) - - - - 1(1) - 1(5) - - 10

2 Periodic Classification 1(5) ------1(1) - - 1(3) - - - - - 09

3 p-Block elements - - 1(3) - - - 1(3) - 1(5) ------1(1) 12

4 d-Block elements - 1(5) 1(3) - - - 1(3) 1(1) - - - 1(1)1(5) - - - 18

5 f-Block elements - - - - - 1(5) - 1(1) - - - 1(1) - - - - 07

6 Co-ordination & Bio-coordination 1(5) ------1(1) - 1(5) ------11 Compounds

7 Nuclear Chemistry - - - - 1(5) ------1(1) - - 1(3) - 09

8 Solid state ------1(3) - 1(5) ------1(1) 09

9 Thermodynamics-II - - - 1(1) - - - 1(1) - 1(5) - - - - 1(3) - 10

10 Chemical equilibrium-II - - 1(3) - - 1(5) - - - - - 1(1) - - - 1(1) 10

11 Chemical Kintics-II - - 1(3) - - - - 1(1) - - 1(3) - - 1(5) - - 12

12 Surface Chemistry 1(5) - - 1(1) - - 1(3) 1(1) - - - 1(1) - - - - 11

13 Electrochemistry - I - - - 1(1)1(5) - 1(3) - - - - - 1(5) - - - 14 14 Electrochemistry-IIwww.kalvisolai.com- - - - 1(5) - - - - 1(5) ------10 15 Isomerism in Organic Chemistry - - 1(3) - 1(5) ------08

16 Hydroxy Derivatives - - 1(3) - - - 1(3) - - - - 1(1)1(5) - - - 12 17 Ethers R.ANNAMALAI- - - 1(1) - 1(5) ------1(1) 07 18 Carbonyl Compounds - - 1(3) - - 1(5) - - - - - 1(1)1(5) - - - 14

19 Carboxylic Acids - - 1(3) - 1(5) - - - - 1(5) - 1(1) - - - - 14

20 Organic Nitrogen Compounds 1(5) ------2(1) - - - 1(1) - - 1(3) - 11 21 Bio molecules - - - 1(1) - - - 1(1)1(5) ------07

22 Chemistry in Action ------1(3) - - 1(5) ------08

23 Problem in Chemistry

TOTAL 20 5 24 6 25 20 24 10 15 25 6 10 20 10 9 4 233 No. of Questions Marks Summary / E / LA 8 80 Part-I MCQ - 30 / 30 Short Answer (SA) No. 12 60 Scheme of options Part-II VSA - 15 / 21 Very Short Answer (VSA) No.21 63 Scheme of Sections Part-III SA - 7 / 12 Objective(O) 30 30 Part-IV E / LA - 3 / 6 & 1 Compulsory (Either or Type) 233 Knowledge : 24% Application : 24% Understanding : 34% Skill : 18% v www.kalvisolai.com

INDEX

S.No. LESSON Page No 1 ATOMIC STRUCTURE - II 1 2 PERIODIC CLASSIFICATION - II 2 3 p - BLOCK ELEMENTS 3 4 d - BLOCK ELEMENTS 4 5 f - BLOCK ELEMENTS 6 6 COORDINATION COMPOUNDS AND BIO-COORDINATION COMPOUNDS 7 7 NUCLEAR CHEMISTRY 8 8 SOLID STATE - II 9 9 THERMONYNAMICS - II 10 10 CHEMICAL EQUILIBRIUM - II 10 11 CHEMICAL KINETICS - II 11 12 SURFACE CHEMISTRY 12 13 ELECTRO CHEMISTRY - I 13 14 HYDROXY DERIVATIVES 15 15 ETHERS 17 16 CORBONYL COMPOUNDS 18 17 CARBOXYLIC ACIDS 20 18 ORGANIC NITROGEN COMPOUNDS 22 19 BIOMOLECULES 24 20 GOVERNMENT EXAMINATION MARCH - 2006 26 21 GOVERNMENT EXAMINATION JUNE - 2006 28 22 GOVERNMENT EXAMINATION OCTOBER - 2006 30 23 GOVERNMENT EXAMINATION MARCH - 2007 32 24 GOVERNMENT EXAMINATION JUNE - 2007 34 25 GOVERNMENTwww.kalvisolai.com EXAMINATION OCTOBER - 2007 36 26 GOVERNMENT EXAMINATION MARCH - 2008 38 27 GOVERNMENT EXAMINATION JUNE - 2008 40 28 GOVERNMENT EXAMINATION OCTOBER - 2008 42 29 GOVERNMENT EXAMINATION MARCH - 2009 44 30 GOVERNMENTR.ANNAMALAI EXAMINATION JUNE - 2009 46 31 GOVERNMENT EXAMINATION OCTOBER - 2009 48 32 GOVERNMENT EXAMINATION MARCH - 2010 50 33 GOVERNMENT EXAMINATION JUNE - 2010 52 34 GOVERNMENT EXAMINATION OCTOBER - 2010 54 35 GOVERNMENT EXAMINATION MARCH - 2011 56 36 GOVERNMENT EXAMINATION JUNE - 2011 58 37 GOVERNMENT EXAMINATION OCTOBER - 2011 60 38 GOVERNMENT EXAMINATION MARCH - 2012 62 39 GOVERNMENT EXAMINATION JUNE - 2012 64 40 GOVERNMENT EXAMINATION OCTOBER - 2012 66 41 GOVERNMENT EXAMINATION MARCH - 2013 68 42 GOVERNMENT EXAMINATION JUNE - 2013 70 43 GOVERNMENT EXAMINATION OCTOBER - 2013 72 44 GOVERNMENT P.T.A MODEL QUESTION PAPER I - V 74

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, vii DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

HIGHER SECONDARY - SECOND YEAR CHEMISTRY INORGANIC CHEMISTRY

1. ATOMIC STRUCTURE - II 2 x 1= 2 Choose the correct answer

1. En= - 313.6 , If the value of Ei = -34.84 to which value ‘n’ corresponds n2 a) 4 b) 3 c) 2 d) 1

2. Dual character of an electron was explained by a) Bohr b) Heisenberg c) de-Broglie d) Pauli

3. de-Broglie equation is

mv hv h a)λ= b) λ=hmv c) λ= h λ= m d) mv 4. The value of Bohr radius for hydrogen atom is a) 0.529 x 10-8cm b)0.529 x 10-10cm c)�0.529 x 10-6cm d)�0.529 x 10-12cm

5. Which of the following particle having same kinetic energy, would have the maximum de-Broglie wave length a) α - particlewww.kalvisolai.com b) proton c) β - particle d) neutron 6. If the energy of an electron in the second Bohr orbit of H-atom is - E, what is the energy of the electron in the Bohr’s first orbit? a) 2E b) -4ER.ANNAMALAIc) -2E d) 4E 7. The energy of electron in an atom is given by En= 4π2me4 2π2me2 2π2me4 2πme4 a) - b) - c) - d) - n2h2 n2h2 n2h2 n2h2 8. The bond order of Oxygen molecule is a) 2.5 b) 1 c) 3 d) 2

9. The hybridisation in SF6 molecule is a) sp3 b)�sp3d2 c) sp3d d) sp3d3 10. The intramolecular hydrogen bonding is present in a) o-nitrophenol b) m-nitro phenol c) p-nitrophenol d) None

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2. PERIODIC CLASSIFICATION - II 1 x 1= 1 Choose the correct answer:- 1. The value of C-C distance found experimentally in a saturated hydrocarbon is a) 1.34Å b) 1.36Å c) 1.54Å d) 1.56Å 2. On moving down the group, the radius of an ion a) Decreases b) Increases c) No change d) None of these 3. Effective nuclear charge (Z*) can be calculated by using the formula a) Z* = Z - S b) Z* = Z + S c)� Z* = S - Z d)�Z = Z* - S 4. Pick the correct statement a) Carbon having more nuclear charge than boron b) The size of carbon atoms is larger than boron c) Carbon forms electron deficient compounds d) Carbon forms ionic compounds 5. Comparing the ionisation energy of fluorine with carbon, fluorine has a) higher ionisation energy b) lower ionisation energy c) same ionisation energy d) none of these 6. Among the following which has the maximum ionisation energy a) Alkali elements b) Alkaline elements c) Halogens d) Noble gases 7. The electron affinity of an atom a) directly proportinal to its size b) inversely proportional to its size c) is independent of its size d) none of these 8. Among the following which has higher electron affinity value a) Fluorine b) Chlorine c) Bromine d) Iodine 9. The scale which is basedwww.kalvisolai.com on an empirical relation between the energy of a bond and the electrongativities of bonded atoms is a) Pauling scale b) Mulliken’s scale c) Sanderson’s scaleR.ANNAMALAI d) Alfred and Rochow’s scale 10. Electron affinity is expressed in a) KJ b) J c) KJ mol d) KJ mol-1

11. The bond length of Cl2 molecule is a) 0.74 b) 1.44 c) 1.98 d) 2.28 12. The order of ionization energy a)sp>d>f c) s>d>p>f d) s

15. When XA>> XB, A - B bond is a) polar covalent b) non-polar covalent c) Ionic d) metallic

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3. p - BLOCK ELEMENTS 1 x 1= 1 Choose the correct answer: 1. Which of the following does not belong to group 13? a) B b) Al c) Ge d) In 2. Which of the following is most abundant in earth’s crust? a) C b) Si c) Ge d) Sn 3.An element which was burnt in limited supply of air to give oxide A which on treatment with water gives

an acid. B Acid B on heating gives acid C which gives yellow precipilate with AgNO3 solution A is

a) SO2 b) NO2 c) P2O3 d) SO3 4. The compound with garlic odour is

a)P2O3 b)P2O5 c) H3PO3 d) H3PO4

5. The shape of PCl5 is a) pyramidal b) trigonal bipyramidal c) linear d) tetrahedral 6. The compound used as smoke screen

a) PCl3 b) PCl5 c) PH3 d) H3PO3 7. Which shows only - 1 oxidation state? a) F b) Br c) Cl d) I 8. One can draw the map of building on a glass plate by a) HI b) HF c) HBr d) HCl 9. Among the halogen acid, the weakest acid is a) HF b) HCl c) HBr d) HI 10. Halogens belong to the group number a) 14 b) 15www.kalvisolai.comc) 17 d) 18 11. The noble gases are unreactive because they a) have same number of electrons b) have an atomicity R.ANNAMALAIof one c) are gases with low densities d) have stable electronic configuration

12. The shape of XeF4 is a) tetrahedral b) octahedral c) square planar d) pyramidal 13. Which is not known?

a) XeF6 b) XeF4 c) XeO3 d) ArF6 14.The lightest gas which is non-inflammable is

a) He b) H2 c) N2 d) Ar 15. Which of the following has highest first ionisation energy? a) He b) Ne c) Ar d) Kr

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4. d - BLOCK ELEMENTS 2 x 1= 2 Choose the correct answer: 1. The general electronic configuration of d-block element is

1-10 0-2 1-5 2 0 1 a) (n-1)d ns b) (n-1) d ns c) (n-1)d ns d) None of these 2. Formation of coloured ions is possible when compounds contains a) paired electrons b) unpaired electrons c) lone pairs of electrons d) none the above 3. Paramagnetism is common in a) p-block elements b) d-block elements c) s-block elements d) f-block elements 3+ 4. The colour of Ti(H2O)6 ion is due a) d-d transistion b) Presence of water molecules c) Inter atomic transfer of electrons d) none the above 5. The electronic configuration of chromium is a) 3d6 4s0 b) 3d5 4s1 c) 3d4 4s2 d) 3d3 4s2 4p1 6. Paramagnetism is the property of a) paired electrons b) completely filled electronic subshells c) unpaired electrons d) completely vacant electronic subshells 7. d-block elements form coloured ions because a) They absorb some energy for d-s transition b) They absorb some energy for p-d transition c) They absorb some energy for d-d transition d) They do not absorb any energy 8. The correct electronic configuration of copper atom is a) 3d10 4s1 b) 3dwww.kalvisolai.com10 4s2 c) 3d9 4s2 d) 3d5 4s2 4p4 9. Copper is extracted from a) cuprite b) copper glance c) malachite d) copper pyrites 10. Silver salt used in photogrR.ANNAMALAIaphy is a) AgCl b) AgNO3 c) AgF d) AgBr 11. Sodiumthiosulphate is used in photography because of its a) Oxidizing behaviour b) Reducing behaviour c) Complexing behaviour d) Photochemical behaviour 12. Excess of sodium hydroxide reacts with zinc to form

a) ZnH2 b) Na2 ZnO2 c) ZnO d) Zn(OH)2 13. Which of the following compounds will not give positive chromyl chloride test?

a) CuCl2 b) HgCl2 c) ZnCl2 d) C6H5Cl 14. Which of the ions will give colourless aqueous solution? a) Ni2+ b) Fe2+ c) Cu2+ d) Cu+ 15. Which of the following compounds is not coloured?

a) Na2CuCl4 b) Na2CdI4 c) K4 [Fe(CN)6 ] d) K3[Fe(CN)6] R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 4 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. In the extraction of Cu, the reaction which does not take place in the Bessemer converter is

a) 2CuFeS2 + O2 Cu2S + FeS + SO2 b) 2Cu2S + 3O2 2Cu2O + 2SO2

c) 2Cu2O + Cu2S 6Cu + SO2 d) 2FeS + 3O2 2FeO + 2SO2 17. Select the wrong statement a) All cuprous salts are blue in colour b) Transition metals are highly reactive c) All cuprous salts are white in colour d) Mercury is a liquid metal

18. Choose the wrong statment regarding K2Cr2O7 a) It is a powerful oxidizing agent b) It is used in tanning industry c) It is soluble in water d) It reduces ferric sulphate to ferrous sulphate 19. For a transition metal ion, the effective magnetic moment in BM is given by the formula

a) n(n-1) b) n(n+1) c) n(n+2) d) n(n+1) (n+2) 20. The correct statement in respect of d-block elements is a) They are all metals b) They sho variable valency c) They form coloured ions and complex salts d) All above statement are correct 21. Which compound is formed when excess of KCN is added to an aqueous solution of copper sulphate a) Cu (CN) www.kalvisolai.comb) K [Cu(CN) ] c) K[Cu(CN) ] d) Cu (CN) + (CN) 2 2 2 6 2 2 2 2 22. Which of the following has the maximum number of unpaired electrons? a) Mn2+ b) Ti3+ c) V3+ d) Fe2+ 23. Among the following R.ANNAMALAIstatement, the incorrect one is a) Calamine and siderite are carbonates b) Argentite and cuprite are oxides c) Zine blende and pyrites are sulphides d) Malachite and azurite are ores of copper 24. The chemical composition of slag formed during the smelting process in the extraction of copper is

a) Cu2O+FeS b) FeSiO3 c) CuFeS2 d) Cu2S+FeO

25. The transition element with the lowest atomic number is a) Scandium b) Titanium c) Zinc d) Lanthanum 26. Which transition element show highest oxidation state a) Sc b) Ti c) Os d) Zn

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5. f - BLOCK ELEMENTS 2 x 1= 2 Choose the correct answer: 1. The electronic configuration of Lanthanides is a) [Xe]4f0 5d0 6s0 b) [Xe]4f1-7 5d1 6s1 c) [Xe]4f1-14 5d1 6s2 d) [Xe]4f1-14 5d1-10 6s2 2. The electronic configuration of Actinides is a) [Rn]5f0-14 6d0 7s0 b) [Rn]5f0-14 6d0-2 7s0 c) [Rn]5f0-14 6d0-2 7s1 d) [Rn]5f0-14 6d0-2 7s2 3. The lanthanide contraction is responsible for the fact that a) Zn and Y have about the same radius b) Zr and Nb have similar oxidation state c) Zr and Hf have about the same radius d) Zr and Zn have the same oxidation state 4. The most common oxidation state of lanthanides is a) +2 b) +1 c) +3 d) +4 5. Lanthanides are extracted from a) Limonite b) Monazite c) Magnetite d) Cassiterite 6. The elements in which the extra electron enters (n-2) f orbitals are called a) s - block elements b) p - block elements c) d - block elements d) f - block elements 7. The Lanthanides contraction is due to a) Perfect shielding of 4f electron b) Imperfect shielding of 4f electron c) Perfect shielding of 3d electron d) Imperfect shielding of 3d electron 8. Ceria is used in a) toys b) tracerwww.kalvisolai.com bullets c) gas lamp materials d) none of the above 9...... is used in gas lamp material

a) MnO2 b) CeO2 c) N2O5 d) Fe2O3 10. Alloys of Lanthanides are called as a) Mish - metals R.ANNAMALAIb) Metalloids c) Plate metals d) Actinides 11. Metallothermic processes involving Lanthanides are called as a) Aluminothermic process b) Lanthanido - thermic process c) Reduction process d) Oxidation process 12...... form oxocations a) Lanthanides b) Actinides c) Noble gases d) Alkalimetals

13. Maximum oxidation state exhibited by Lanthanides is a) +1 b) +2 c) +3 d) +4 14. Lanthanides are separated by a) Fractional distillation b) Steam distillation c) Fractional Crystallisation d) Sublimation

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6. COORDINATION COMPOUNDS AND BIO-COORDINATION COMPOUNDS 1 x 1= 1 Choose the correct answer 1. Which a double salt

a) K2SO4.Al2(SO4)3.24H2O b)NaCl c) K4[Fe(CN)6] d) KCl 2. An example of a complex compound having coordination number 4

a) K4[Fe(CN)6] b)[Co(en)3]Cl3 c) [Fe(H2O)6]Cl3 d) [Cu(NH3)4]Cl2 2+ 3. The geometry of [Cu(NH3)4] complex ion a) Linear b) Tetrahedral c) Square planar d) Angular 4. An example of a chelating ligand is

- a) NO 2 b) Chloro c) Bromo d) en 4- 5. The geometry of complex ion [Fe(CN6] is a) tetrahedral b) square planar c) Octahedral d) triangular

2- 6. The oxidation number of Nickel in the complex ion, [NiCl4] is a) +1 b) -1 c) +2 d) -2 7. Which is not an anionic complex?

2- a) [Cu(NH3)4]Cl2 b) K4[Fe(CN)6] c) K3[Fe(CN)6] d) [NiCl4] 2- 8. The geometry of [Ni(CN)4] is a) Tetrahedral b) Square planar c) Triangular d) Octahedral 9. An example of an ambidentate ligand is

- - - - a) CN b) Cl c) NO2 d) I 4- 10. [FeF6] is paramagnetic because a) F-is a weaker ligandwww.kalvisolai.comb) F-is a strong ligand c) F - is a flexidentate ligand d) F - is a chelating ligand II 4- 11. In [Fe (CN)6] the central metal ion is a) Fe b) FeR.ANNAMALAI+2 c) Fe+3 d) CN- 2- 12. The coordination number of Ni (II) in [Ni(CN)4] is a) 2 b) 4 c) 5 d) 6 IV 2+ 13. The name of [Pt (NH3)2Cl2] is a) Diamminedichloroplatinum (IV) ion b) Diamminedichloroplanitate (IV) c) Diamminedichloroplatinum d) Dichlorodiammineplatinum (IV) ion + 4- 14. For a compound K4[Fe(CN)6] 4K + [Fe(CN6] , the complex ion is + - II 4- a) K b) CN c) Fe d) [Fe(CN)6] 15. A metal ion from the first transition series forms an octahedral complex with magnetic moment of 4.9 BM and another octahedral complex which is diamagnetic. The metal ion is a) Fe2+ b) Co2+ c) Mn2+ d) Ni2+ 16. Paramagnetic moment is expressed in a) Debye unit b) K Joules c) BM d) ergs

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17. The type of isomerism found in the complexes [Co(NO2)(NH3)5]SO4 and [Co(SO4)(NH3)5]NO2 a) Hydrate isomerism b) Coordination isomerism c) Linkage isomerism d) Ionisation

18. Valence bond theory does not explain the property of complex compound a) geometry b) magnetic c) nature of ligand d) colour

7. NUCLEAR CHEMISTRY 1 x 1= 1 Choose the correct answer:- 1. The phenomenon of radioactivity was discovered by a) Mada curie b) Pierre curie c) Henry Becquerrel d) Rutherford 2. The most penetrating radiations are a) α rays b) β rays c) γ rays d) All are equally penetrating

238 206 3. In the nuclear reaction, 92U 82Pb , the of α and β particles emitted are a) 7α, 5β b) 6α, 4β c) 4α, 3β d) 8α, 6β

27 30 4. Which one of the following particles is used to bombard 13Al to give 15p and a neutron a) α particle b) deuteron c) proton d) neutron

8 8 5. The reaction 5B 4Be takes place due to a) α decay b) β decay c) electron capture d) positron decay 6. Radioactivity is due towww.kalvisolai.com a) Stable electronic configuration b) Stable nucleus c) Unstable nucleus R.ANNAMALAI d) Unstable electronic configuration

232 220 7. In the following radioactive decay, 92X 89y , how many α and β Particles are ejected. a) 3α, 3β b) 5α, 3β c) 3α, 5β d) 5α, 5β

235 139 94 8. 92U nucleus absorbs a neutron and disintegrates into 54Xe , 38Sr and x. What will be the product x? a) 3 neutrons b) 2 neutrons c) α particle d) β particle 9. Loss of a β-particle is equivalent to a) Increase of one proton b) Decrese of one neutron only c) Both (a) and (b) d) None of these

10. Which of the following is used as neutron absorber in the nuclear reactor? a) Water b) Deuterium c) Some compound of uranium d) Cadmium

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PHYSICAL CHEMISTRY 8. SOLID STATE - II 1 x 1= 1 Choose the correct answer. 1. The number of chloride ions that surrounds the central Na+ ion in NaCl crystal is ...... a) 12 b) 8 c) 6 d) 4 2. The Bragg’s equation is a) λ=2d sinθ b) nd=2λsinθ c) 2λ=nd sinθ d) nλ=2d sinθ 3. A regular three dimensional arrangement of indentical points in space is called a) Unit cell b) Space lattice c) Primitive d) Crystallography 4. The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called a) Space lattice b) Crystal lattice c) Unit cell d) Isomorphism 5. The crystal structure of CsCl is a) Simple cubic b) face-centred cubic c) Tetragonal d) Body centred cubic 6. An example for Frenkel defect is a) NaCl b) AgCl c) CsCl d) FeS 7. Semiconductors which exhibit conductivity due to the flow of excess negative electrons are called a) Super conductors b) n-type semiconductors c) p-type semiconductors d) Insulators 8. In the Bragg’s equation for diffraction of X-rays, ‘n’ represents a) The number of moles b) Avogadro number c) A quantum number d) Order of reflection 9. The number of close www.kalvisolai.comneighbours in a body centred cubic lattice of identical sphares is a) 6 b) 4 c) 12 d) 8 10. The crystals which are good conductors of electricity and heat are a) Ionic crystals b) Molecular crystals c) Metallic crystals d) Covalent crystals 11. In a simple cubic cell,R.ANNAMALAI each point on a corner is shared by a) One unit cell b) Two unit cell c) 8 unit cell d) 4 unit cell 12. The ability of certain ultra cold substances to conduct electricity without resistance is called a) Semiconductor b) Conductor c) Superconductor d) Insulator 13. The total number of atoms per unit cell is bcc is a) 1 b) 2 c) 3 d) 4 14. Rutile is

a) TiO2 b) Cu2O c) MoS2 d) Ru 15. Semiconductors are used as a) rectifiers b) transistors c) solar cells d) all the above 16. An example of metal deficiency defect a) NaCl b) AgCl c) CsCl d) FeS

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9. THERMONYNAMICS - II 2 x 1= 2 Choose the correct answer. 1. The amount of heat exchanged with the surrounding at constant temperature and pressure is called a) Δ E b) Δ H c) Δ S d) Δ G 2. All the naturally occuring processes proceed spontaneously in a direction which leads to a) decrease of entropy b) increase in enthalpy c) increase in free energy d) decrease of free energy 3. In an adiabatic process which of the following is true? a) q = w b) q = 0 c) ΔE = q d) PΔV = 0 4. When a liquid boils, there is a) an increase in entropy b) a decrease in entropy c) an increase in heat of vapourisation d) an increase in free energy 5. If ΔG for a reaction is negative, the change is a) Spontaneous b) Non-spontaneous c) Reversible d) Equilibrium 6. Which of the following does not results in an increase in the entropy? a) crystallisation of sucrose from solution b) rusting of iron c) conversion of ice to water d) vaporisation of camphor 7. In which of the followingwww.kalvisolai.com process, the process is always non-feasible? a) ΔH>0, ΔS>0 b) ΔH<0, ΔS>0 c) ΔH>0, ΔS<0 d) ΔH<0, ΔS<0 8. Change in Gibb’s free energy is given by a) ΔG = ΔH + TΔS R.ANNAMALAIb) ΔG = ΔH - TΔS c) ΔG = ΔH x TΔS d) None of the above

9. For the reaction 2Cl(g) Cl2(g), the signs of Δ H and Δ S respectively are a) +, – b) +, + c) –,– d) –, +

10. CHEMICAL EQUILIBRIUM - II 2 x 1= 2 Choose the correct answer. 1. State of chemical equilibrium is a) dynamic b) stationery c) none d) both

2. If the equilibrium constants of the following reactions are 2A B is K1 and B 2A is K2, then 2 2 a) K1 = 2K2 b) K1 = 1/K2 c) K2 = (K1) d) K1 = 1/K2

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3. In the reversible reaction 2HI H2 + I2, is

a) greater than Kc b) less than Kc c) Equal to Kc d) Zero

4. In the equilibrium N2 + 3H2 2NH3 , the maximum yield of ammonia will be obtained with the process having a) low pressure and high temperature b) low pressure and low temperature c) high temperature and high pressure d) high pressure and low temperature

5. For the homogeneous gas reaction at 600 K

(g) (g) (g) (g) 4NH3 + 5O2 4NO + 6H2O

-3 -2 -3 -3 10 -3 -9 a) (mol dm ) b) (mol dm ) c) (mol dm ) d) (mol dm )

6. Two moles of ammonia gas are introduced into a previously evacuated 1.0 dm3 vessel in which it partially dissociates at high temperature. At equilibrium 1.0 mole of ammonia remains. The equilibrium constant Kc for the dissociation is a) 27/16 (mole dm-3)2 b) 27/8 (mole dm-3)2 c) 27/4 (mole dm-3)2 d) None

7. An equilibrium reaction is endothermic if K1 and K2 are the equilibrium constants at T1 and T2

temperature respectively and if T2 is greater than T1 than

a) K1 < K2 b) K1 > K2 c) K1 = K2 d) None

11. CHEMICAL KINETICS - II 1 x 1= 1 Choose the correct answer 1. Hydrolysis of an esterwww.kalvisolai.com by dilute HCl is an example for (a) Second order reaction (b) zero order reaction (c) pseudo first order reaction (d) first order reaction 2. The unit of zero order rate constant is (a) litre mol–1sec–1 R.ANNAMALAI(b) mol litre–1 sec–1 (c) sec–1 (d) litre2 sec–1 3. The excess energy which a molecule must process to becom active is known as ty (a) kinetic energy (b) threshold energy (c) potential energy (d) activation energy 4. Arrhenius equation is (a) k = Ae–1/RT (b) k = Ae–RT/Ea (c) k = Ae–Ea/RT (d) k = AeEa/RT 5. The term A in arrhenius equation is called as (a) Probability factor (b) Activation of energy (c) Collision factor (d) Frequency factor 6. The sum of the powers of the concentration terms that occur in the rate equation is called (a) molecularity (b) Order (c) rate (d) rate constant

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7. Reactions in which the reacting molecules resact in more than one way yielding different set of products are called (a) consecutive reactions (b) parallel reactions (c) opposing reactions (d) chain reactions 8. The half life period of a first order reaction is 10 minutes. Then its rate constant is (a) 6.93 x 102 min–1 (b) 0.693 x 10–2 min–1 (c) 6.932 x 10–2 min–1 (d) 69.3 x 10–1 min–1 9. For a reaction : aA bB, the rate of reaction is doubled when the concentratin of A is increased by your times. The rate of reaction is equal to (a) k [A]a (b) k [A]½ (c) k [A]1/a (d) k [A]

d [N O ] 10. 2N O 4NO + O , 2 5 = k [N O ], 2 5 2 2 dt 1 2 5 d [NO ] d [O ] 2 = k [N O ] and 2 = k [N O ], the relation between k , k and k is dt 2 2 5 dt 3 2 5 1 2 3

(a) 2k1 = 4k2 = k3 (b) k1 = k2 = k3 (c) 2k1 = k2 = 4k3 (d) 2k1 = k2 = k3 5 –1 11. For a reaction, Ea = 0 and k = 4.2 x 10 sec at 300 K, the value of k at 310K will be (a) 4.2 x 105 sec–1 (b) 8.4 x 105 sec–1 (c) 7.4 x 104 sec–1 (d) unpredictable

12. SURFACE CHEMISTRY 3 x 1= 3 Choose the correct answer 1. The migration of colloidal particles under the influence of an electric field is known as (a) electroosmosis www.kalvisolai.com(b) cataphoresis (c) electrodialysis (d) electrophoresis 2. Which one is the correct factor that explains the increase of rate of reaction by a catalyst (a) shap selectivity R.ANNAMALAI(b) particle size (c) increase of free energy (d) lowering of activation energy 3. Fog is a colloidal solution of (a) gas in liquid (b) liquid in gas (c) gas in solid (d) solid in gas 4. The phenomenon of Tyndall’s effect is not observed in (a) emulsion (b) colloidal solution (c) true solution (d) None 5. The Tyndall’s effect associated with colloidal particles is due to (a) presence of change (b) scattering of light (c) absorption of light (d) reflection of light 6. In case of physical adsorption, there is desorption when (a) temperature increases (b) temperature decreases (c) pressure increases (d) concentration increases

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7. Colloidal medicines are more effective because (a) they are clean (b) they are easy to prepare (c) the germs more towards, them (d) they are easily assimilated and adsorbed 8. Oil soluble dye is mixed with emulsion and emulsion remains colourless then, the emulsion is (a) O/W (b) W/O (c) O/O (d) W/W 9. For selective hydrogenation of alkyness into alkene the catalyst used is (a) Ni / 250°C (b) Pt / 25°C (c) Pd, partially inactivated by quinoline (d) Raney nickel 10. For chemisorption, which is wrong (a) irreversivle (b) it requires activation energy (c) it forms multimolecular layers on adsorbate (d) surface compounds are formed 11. An emulsion is a colloidal solution of (a) two solids (b) two liquids (c) two gases (d) one solid one liquid 12. Colloids are purified by (a) precipitation (b) coagulation (c) dialysis (d) filtration

13. ELECTRO CHEMISTRY - I 1 x 1= 1 Choose the correct answer 1. The process in which chemical change occurs on passing electricity is termed as ...... (a) neutralisation (b) hydrolysis (c) electrolysis (d) ionisation 2. The laws of electrolysiswww.kalvisolai.com were enunciated first by ...... (a) Dalton (b) Faraday (c) Kekule (d) Avogadro 3. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to ...... (a) equivalent weight R.ANNAMALAI(b) molecular weight (c) electrochemical equivalent (d) one gram 4. Faraday’s laws of electrolysis are related to ...... (a) atomic number of the cation (b) atomic number of the anion (c) equivalent weight of the electrolyte (d) speed of the cation 5. The specific conductance of a 0.01 M solution of KCl is 0.0014 ohm–1 cm–1 at 25oC. Its equivalent conductance is ...... (a) 14 ohm–1 cm2 eq–1 (b) 140 ohm–1 cm2 eq–1 (c) 1.4 ohm–1 cm2 eq–1 (d) 0.14 ohm–1 cm2 eq–1

o –1 2 –1 6. The equivalent conductivity of CH3COOH at 25 C is 80 ohm cm eq and at infinite dilution 400 –1 2 –1 ohm cm eq . The degree of dissociation of CH3COOH is ...... (a) 1 (b) 0.2 (c) 0.1 (d) 0.3

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7. When sodium acetate is added to acetic acid, the degree of ionisation of acetic acid ...... (a) increases (b) decreases (c) does not change (d) becomes zero

8. NH4OH is a weak base because ...... (a) it has low vapur pressure (b) it is only partially ionised (c) it is completely ionised (d) it has low density 9. Which one of the following formulae represents Ostwald’s dilution law for a binary electrolyte whose degree of dissociation is α and concentration C. (1-α) C α2C (a) K = (b) K = α 1-α

(1-α)C α2C (c) K = (d) K = α2 (1- α)C 10. Ostwald’s dilution law is applicable in the case of the solution of ......

(a) CH3COOH (b) NaCl (c) NaOH (d) H2SO4 11. Which one of the following relationship is correct? 1 (a) pH = (b) pH = log [H+] [H+] 10

1 (c) log pH = [H+] (d) pH = log 10 10 [H+] 12. When 10–6 mole of a monobasic strong acid is dissolved in one litre of solvent, the pH of the solution is ...... (a) 6 (b) 7 (c) less than 6 (d) more than 7 13. When pH of a solution is 2, the hydrogen ion concentration in moles litre - 1 is ...... (a) 1 X 10–12 www.kalvisolai.com(b) 1 X 10–2 (c) 1 X 10–7 (d) 1 X 10–4 14. The pH of a solution containing 0.1 N NaOH solution is ...... (a) 1 (b) 10–1 (c) 13 (d) 10–13 15. A solution which is resistantR.ANNAMALAI to changes of pH on addition of small amounts of an acid or a base is known as ...... (a) buffer solution (b) true solution (c) isohydric solution (d) ideal solution 16. The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salt is given by ...... [Acid] (a) [H+] = K (b) [H+] = K [Salt] a [Salt] a [Salt] (c) [H+] = K [Acid] (d) [H+] = K a a [Acid] 17. Indicators used in acid - base titrations are ...... (a) strong organic acids (b) strong organic bases (c) weak organic acids or weak organic bases (d) non-eletrolysis

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18. For the titration between oxalic acid and sodium hydroxide, the indicator used in ...... (a) potassium permanganate (b) phenolphthalein (c) litmus (d) methyl orange

16. HYDROXY DERIVATIVES 1 x 1= 1 Choose the correct answer. 1. Which has the highest boiling point?

(a) CH3CH3 (b) CH3OH (c) C2H5OH (d) C3H8

2. Which is soluble in H2O? (a) Phenol (b) Alkanes (c) Alcohols (d) Alkenes 3. Order of reactivity of alcohol towards sodium metal is (a) primary < secondary > tertiary (b) primary > secondary > tertiary (c) primary < secondary < tertiary (d) primary > secondary < tertiary 4. The boiling point of ethyl alcohol should be less than that of (a) propane (b) formic acid (c) dimethyl ether (d) None of the above

5. Ethyl alcohol cannot be used as a solvent for CH3MgI because

(a) CH3MgI reacts with alcohol giving methane (b) The reaction between them is explosive in nature (c) CH MgI is convertedwww.kalvisolai.com to C H MgI 3 2 5

(d) Alcohol is immicible with CH3MgI 6. When alcohols are converted to alkyl chlorides by thionyl chloride in presence of pyridine the intermediate formed isR.ANNAMALAI (a) sulphonium ion (b) chlorosulphonic acid (c) alkyl chlorosulphite (d) chlorosulphite 7. On oxidation of an alcohol gives an aldehyde having the same number of carbon atoms as that of alcohol. The alcohol is (a) 1o alcohol (b) 2o alcohol (c) 3o alcohol (d) None 8. A compound that gives a positive iodoform test is (a) 1-pentanol (b) 2-pentanone (c) 3-pentanone (d) pentanal 9. The compound that racts fastest with Lucas reagent is (a) butan - 1 - ol (b) butan - 2 - ol (c) 2 methyl propan - 1 - ol (d) 2 - methyl propan - 2 - ol

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10. The ionization constant of phenol is higher than that of ethanol because (a) phenoxide ion is bulkier than ethoxide (b) phenoxide ion is sronger base than ethoxide (c) phenoxide ion is stablized through delocalisation (d) phenoxide ion is less stable than ethoxide ion 11. Among the following compounds strongest acid is

(a) HC = CH (b) C6H6 (c) C2H6 (d) CH3OH 12. The most unlikely representation of resonance structures of p-nitrophenoxide ion is

- o o o o- (a) (b) (c) (d) -

N N N N + + + (-) (-) o o o o(-) o o o- o

13. p-nitrophenol is having lower pKa value than phenol because (a) phenol is more acide than p-nitro phenol (b) anion of p-nitrophenol is more stabilised by resonance than that of phenol (c) degree of ionisation of p-nitro phenol is less than that of phenol (d) anion of p-nitrophenol is less stable than that of phenol 14. The reaction of Lucas reagent is fast with

(a) (CH3)3COH (b) (CH3)2CHOH (c) CH3(CH2)2OH (d) CH3CH2OH 15. When phenol is distilled with Zn dust it gives (a) benzaldehydewww.kalvisolai.com (b) benzoic acid (c) toluene (d) benzene 16. A compound that undergoes bromination easily is (a) benzoic acid (b) benzene (c) phenol (d) toluene 17. Isomerism exhibited byR.ANNAMALAI ethylene glycol is (a) position isomerism (b) chain isomerism (c) functional isomerism (d) both (a) and (c) 18. Ethylene diamine is converted to ethylene glycol using

(a) Na2CO3 solution (b) nitrous acid (c) NaHCO3 (aqueous) (d) Baeyer’s reagent 19. Ethylene glycol forms terylene with (a) adipic acid (b) phthalic anhydride (c) terephthalic acid (d) oxalic acid 20. 1 - propanol and 2 - propanolcan be best distinghished by

(a) oxidation with KMnO4 followed by reaction with Fehling solution (b) oxidation with acid dichromate followed by reaction with Fehling solution (c) oxidation by heating with copper followed by reaction with Fehling solution

(d) oxidation with concentrated H2SO4 followed by reaction with Fehling solution

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21. Glycerol is used (a) as a sweeteing agent (b) in the manufacture of good quality soap (c) in the manufacture of nitro glycerin (d) in all the above 22. The alcohol obtained by the hydrolysis of oils and fats is (a) pentanol (b) propanol (c) glycerol (d) glycol 23. The number of secondary alcoholic group in glycerol is (a) 1 (b) 2 (c) 3 (d) 0 24. The active component of dynamite is (a) Keiselghur (b) Nitro glycerine (c) Nitro benzene (d) Trinitro toluene

25. The reaction of ethylene glycol with PI3 gives

(a) ICH2CH2I (b) CH2 = CH2 (c) CH2 = CHI (d) ICH = CHI

17. ETHERS 2 x 1= 2 Choose the correct answer:

1. The isomerism exhibited by C2H5OC2H5 and CH3 – O – CH – CH3 is |

CH3 (a) Functional (b) metamerism (c) position (d) chain

2. Which one of the following is simple ether? (a) CH – O – C H (b) C H – O – CH 3 2 www.kalvisolai.com5 2 5 3 (c) C2H5 – O – C2H5 (d) C3H7 – O – C2H5 3. Diethyl ether can be decomposed with (a) HI (b) KMnO (c) NaOH (d) H O R.ANNAMALAI4 2 4. Oxygen atom of ether is (a) very active (b) Replacable (c) oxidising (d) Comparatively inert 5. According to Lewis concept of acids and bases, ethers are (a) Neutral (b) Acidic (c) Basic (d) Amphoteric 6. Intermolecular hydrogen bonds are not present in

(a) CH3COOH (b) C2H5OC2H5 (c) CH3CH2OH (d) C2H5NH2 7. When ethyl Iodide is treated with dry silver oxide it forms (a) Ethyl alcohol (b) diethylether (c) silver ethoxide (d) ethylmethyl ether 8. Williamson’s synthesis is an example of (a) nucleophilic addition (b) electrophilic addition (c) electrophilic substitution (d) Nucleophilic substitution reaction

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9. When ether is exposed to air for sometime an explosive substance produced is (a) peroxide (b) oxide (c) TNT (d) superoxide 10. Ether is formed when alkylhalide is treated with sodium alkoxide. This method is known as (a) Hoffmann reaction (b) Williamson’s synthesis (c) Wurtz synthesis (d) Kolbe’s reaction

18. CORBONYL COMPOUNDS 1 x 1= 1 Choose the correct answer 1. The chain isomer of 2-methyl propanal is (a) 2-butanone (b) butanal (c) 2-methyl propanol (d) but 3 - ene - 2 - ol 2. Schiffs reagent gives pink colour with (a) acetone (b) acetaldehyde (c) ethyl alcohol (d) methyl acetate 3. Isopropyl alcohol vapours with air over silver catalyst at 520 K give (a) tert.butyl alcohol (b) acetaldehyde (c) acetone (d) 2-propanol

4. Methyl ketones are usually characterised by (a) the Fehling’s solution (b) the iodoform test (c) the Schiff’s test (d) the Tollen’s reagent 5. Which of the following compounds is oxidised to give ethyl methyl ketone? (a) 2-propanol (b) 2-pentanone (c) 1-butanol (d) 2-butanol 6. Formaldehyde polymerisewww.kalvisolai.coms to give (a) paraldehyde (b) paraformaldehyde (c) formalin (d) formic acid 7. Tollen’s reagent is (a) ammoniacal cuprousR.ANNAMALAI chloride (b) ammoniacal cuprous oxide (c) ammoniacal silver nitrate (d) ammoniacal silver chloride 8. When acetaldehyde is heated with Fehling solution, it gives a precipitate of

(a) Cu2O (b) CuO (c) CuO + Cu2O (d) Cu 9. The compound that does not undergo Cannizzaro reaction is (a) formaldehyde (b) acetaldehyde (c) benzaldehyde (d) trimethyl acetaldehyde

10. The formation of cyanohydrin from a ketone is an example of (a) electrophilic addition (b) nucleophilic addition (c) nucleophilic substitution (d) electrophilic subtitution

11. Hydrogenation of benzoyl chloride in the presernce of Pd on BaSO4 gives (a) phenol (b) benzoic acid (c) benzyl alcohol (d) benzaldehyde

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12. From which of the following, tertiary butyl alcohol is obtained by the action of methyl magnesium iodide?

(a) HCHO (b) CH3CHO (c) CH3COCH3 (d) CO2

13. During reduction of aldehydes with hydrazine and C2H5ONa the product formed is = (a) R–CH = N–NH2 (b) R–C N

(c) R – C – NH2 (d) R – CH3 || O 14. Aldol is (a) 2-hydroxy butanol (b) 3-hydroxy butanol (c) 3-hydroxy butanal (d) 2-hydroxy butanal

15. In the reduction of acetaldehyde using LiAlH4 the hydride ion acts as (a) electrophile (b) nucleophile (c) both (a) and (b) (d) a free radical

16. Which of the following statement is wrong? (a) 2-pentanone and 3-pentanone are position isomers (b) aqueous solution of formaldehyde is known as formalin (c) aldehydes and ketones undergo nucleophilic substitution (d) aldehydes act as reducing agents

17. A cyanohydrin of a compound X on hydrolysis gives lactic acid. THe X is

(a) HCHO (b) CH3CHO (c) (CH3)2 CO (d) C6H5CH2CHO

18. The IUPAC name of CH3 – C = CH – C – CH3 is www.kalvisolai.com | ||

CH3 O (a) 4-methylpent-3-en-2-one (b) 2-methylpent-3-en-2-one (c) 3-methylpent-2-en-1oneR.ANNAMALAI (d) None of these 19. Which of the following does not give iodoform test? (a) aceto phenone (b) benzophenone

20. The compound which does not reduce Fehling solution is (a) formaldehyde (b) acetaldehyde (c) benzaldehyde (d) propionaldehyde

Conc. H2SO4 21. CH3COCH3 The product is (a) mesitylene (b) mesityl oxide (c) phorone (d) paraldehyde

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22. Which compound on strong oxidation gives propionic acid?

(a) CH3 – CH – CH3 (b) CH3 – CO – CH3 | OH

CH3 – C – OH |

CH3 23. The compound used in the preparation of the tranquilizer, sulphonal is (a) acetone (b) acetophenone (c) isopropyl alcohol (d) glycol 24. Calcium acetate + calcium benzoate distillation gives (a) benzophenone (b) benzaldehyde (c) acetophenone ` (d) phenyl benzoate 25. Bakelite is a product of reaction between (a) formaldehyde and NaOH (b) phenol and methanal (c) aniline and NaOH (d) phenol and chloroform

19. CARBOXYLIC ACIDS 1 x 1= 1 Choose the correct answer. 1. Which of the following is least acidic

(a) C2H5OH (b) CH3COOH (c) C6H5OH (d) ClCH2COOH 2. Weakest acid among thewww.kalvisolai.com following is (a) Acetic acid (b) Phenol (c) Water (d) Acetylene 3. Ester formation involves the reaction of (a) an aldehyde and aR.ANNAMALAI ketone (b) an alcohol with RMgX (c) Two molecules of an acid with dehydrating agent (d) an acylhalide with an alcohol 4. Heating a mixture of sodium acetate and soda lime gives (a) methane (b) ethane (c) acetic acid (d) oxalic acid 5. The acid which reduces Tollen’s reagent is (a) acetic acid (b) benzoic acid (c) formic acid (d) oxalic acid

CH3 |

6. The IUPAC name of CH3 – CH2 – CH – COOH is (a) α - methyl butric acid (b) 3-methyl butanoic acid (c) 2-methyl butanoic acid (d) Iso pentanoic acid

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7. The Isomerism exhibited by CH3CH2COOH and CH3COOCH3 is (a) metamerism (b) position (c) chain (d) functional 8. The acid that cannot be prepared by Grignard reagent (a) acetic acid (b) formic acid (c) butyric acid (d) benzoic acid 9. Which order of arrangement is correct iterms of the strength of the acid

(a) CH3–CH2COOH > CH3COOH < HCOOH < ClCH2COOH

(b) ClCH2COOH < HCOOH < CH3COOH < CH3CH2COOH

(d) HCOOH > CH3CH2COOH < CH3COOH > ClCH2COOH

10. The compound which does not undergo intermolecular dehydration with P2O5 is (a) acetic acid (b) formic acid (c) propionic acid (d) Butyric acid

H 11. C = O160oC The product is HO

(a) CO + H2O (b) HCOOH (c) H2 + CO2 (d) HCHO + O2 12. When chlorine is passed through acetic acid in presence of red P, it forms. (a) acetyl chloride (b) Trichloro acetaldehyde (c) Trichloro acetic acid (d) Methyl chloride

13. Which of the following compounds will react with NaHCO3 solution to give sodium salt and CO2 ? (a) acetic acid (b) n-hexanol (c) phenol (d) both (a) and (c)

14. When propanoic acid is treated with aqueous sodium - bicarbonatate, CO2 is liberated. The “C” of CO comes from 2 www.kalvisolai.com (a) methyl group (b) carboxylic acid group (c) methylene group (d) bicarbonate 15. Carboxylic acids are R.ANNAMALAImore acidic than phenol and alcohol because of (a) inter molecular hydrogen bonding (b) formation of dimers (c) highly acidic hydrogen (d) greater resonance stabilisation of their conjugate base 16. Among the following the strongest acid is

(a) ClCH2COOH (b) Cl3CCOOH (c) CH3COOH (d) Cl2CHCOOH 17. Which of the following compound is optically active?

(a) CH3CH2COOH (b) HOOC–CH2–COOH

(a) CH3COCOOH (b) CH3CH2COOH

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19. The compound found in some stony deposit in kidneys is (a) potassium oxalate (b) oxalic acid (c) potassium succinate (d) calcium oxalate 20. Ethylene cyanide on hydrolysis using acid gives (a) oxalic acid (b) succinic acid (c) adipic acid (d) propionic acid

20. ORGANIC NITROGEN COMPOUNDS 3 x 1= 3 Choose the correct answer 1. Bromo ethane reacts with silver nitrite to give

(a) C2H5NO2 (b) C2H5–O–NO (c) C2H5Ag + NaBr (d) C2H5NC O

2. The isomerism exhibited by CH3 – CH2 – N and CH3 CH2 – O – N = O is O (a) position (b) chain (c) functional (d) tautomerism

3. In nitro alkanes –NO2 group is converted to – NH2 group by the reaction with

(a) Sn/HCl (b) Zn dust (c) Zn/NH4Cl (d) Zn/NaOH

4. When nitromethane is reduced with Zn dust + NH4Cl in neutral medium, we get

(a) CH3NH2 (b) C2H5NH2

(c) CH3NHOH (d) C2H5COOH 5. The compound that is most reactive towards electrophilic nitration is (a) Toluene (b) benzene (c) benzoic acid (d) nitrobenzene 6. Nitromethane condenseswww.kalvisolai.com with acetaldehyde to give (a) nitro propane (b) 1-nitro-2-propanol (c) 2-nitro-1-propanol (d) 3-nitro propanol 7. Which of the followingR.ANNAMALAI compounds has the smell of bitter almonds? (a) aniline (b) nitro methane (c) benzene sulphonic acid (d) nitrobenzene 8. Nitration of nitrobenzene results in (a) o-dinitro benzene (b) 1,3,5-trinitro benzene (c) p-dinitro benzene (d) m-dinitro benzene 9. Nitrobenzene on electrolytic reduction in con. sulphuric acid, the intermediate formed is

(a) C6H5NH – NHC6H5 (b) C6H5 – NHOH

(c) C6H5 – N = N – C6H5 (d) C6H5.HSO4 10. Electrophile used in the nitration of benzene is (a) hydronium ion (b) sulphonic acid (c) nitronium ion (d) bromide ion

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11. The reduction of CH3 – CH2 – C = N with sodium and alcohol results in the formation of

(a) CH3 – CH– CH3 (b) CH3 – CH2 – CH2 – OH + N2

NH2

(c) CH3 – CH2 – CH2 – NH2 (d) CH3 – CH2 – NH2 12. The basic character of amines is due to the (a) tetrahedral structure (b) presence of nitrogen atom (c) lone pair of electrons on nitrogen atom (d) high electronegativity of nitrogen 13. The organic compound that undergoes carbylamine reaction is

(a) (C2H5)2NH (b) C2H5NH2 + – (c) (C2H5)3N (d) (C2H5)4 N I 14. Primary amine acts as (a) Electrophile (b) lewis base (c) Lewis acid (d) Free radical 15. Oxidation of aniline with acidified potassium dichromate gives (a) p-benzo quinone (b) benzoic acid (c) benzaldehyde (d) benzyl alcohol 16. Which one of the following is a secondary amine? (a) aniline (b) diphenyl amine (c) sec.butylamine www.kalvisolai.com(d) tert.butylamine NaNO2/HCl 17. C6H5NH2 X. Identify X.

(a) C6H5Cl (b) C6H5NHOH (c) C H N Cl (d) C H OH 6 5 2 R.ANNAMALAI6 5 18. Which of the following will not undergo diazotisation? (a) m-toluidine (b) aniline (c) p-amino (d) benzyl amine 19. Anilin differs from ethylamine by the reaction with (a) metallic sodium (b) an alkyl halide (c) chloroform and caustic potash (d) nitrous acid 20. When aqueous solution of benzene diazonium chloride is boiled the product formed is

(a) benzyl alcohol (b) benzene + N2 (c) phenol (d) phenyl hydroxylamine

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21. BIOMOLECULES 2 x 1= 2 Choose the correct answer. 1. Which is a mono saccharide among the following (a) Sucrose (b) Cellulose (c) Maltose (d) Glucose 2. Identify the reducing sugar. (a) Sucrose (b) Cellulose (c) Starch (d) Glucose 3. Sucrose is not (a) a di saccharide (b) a non - reducing sugar (c) hydrolysed to only glucose (d) hydrolysed to glucose & fructose 4. Sucrose contains glucose and fructose linked by

(a) C1 – C1 (b) C1 – C2 (c) C1 – C4 (d) C1 – C6 5. Glucose is not oxidised to gluconic acid by

(a) Br2/H2O (b) Fehling solutions (c) Tollen’s reagent (d) Conc. HNO3 6. Inversion of sucrose refers to (a) oxidation of sucrose (b) reduction of sucrose (c) hydrolysis of sucrose to glucose and fructose (d) polymerisation of sucrose 7. Glucose forms ______with acetic anhydride and sodium acetate. (a) di acetate (b) tetra acetate (c) penta acetate (d) hexa acetate 8. The amino acid without chiral carbon is (a) Glysine (b) Alanine (c) Proline (d) Thyrosine 9. The building block of proteins are (a) α-hydroxy acids www.kalvisolai.com(b) α-amino acids (c) β-hydroxy acids (d) β-amino acids 10. Which is not true of amino acid? (a) amino acid forms Z witter ion (b) has isoelectric point (c) dual behaviours (d) amino acid is insoluble in NaOH solution 11. Two amino acids sayR.ANNAMALAI A, B - react to give (a) two dipeptides (b) three dipeptides (c) four dipeptides (d) only one 12. A di peptide does not have (a) two peptide units (b) portions of two amino acids (c) an amido group (d) salt like structure 13. Proteins are not sensitive to (a) acids (b) bases (c) elevated temperature (d) water 14. Denaturation does not involve (a) breaking up of H - bonding in proteins (b) the loss of biological action of enzyme (c) the loss of secondary stucture (d) loss of primary structure of proteins R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 24 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

15. Specificity of enzyme is due to (a) the sequence of amino acids (b) secondary structure (c) tertiary structure (d) all of the above 16. Ultimate products of hydrolysis of proteins is (a) aniline (b) aliphatic acid (c) amino acid (d)aromatic acid 17. Proteins are (a) polypeptides (b) polyacids (c) poly phenols (d) poly esters 18. Which of the following contains a lipid? (a) starch (b) mineral oil (c) edible oil (d) peptide 19. Which among the following contains triglyceride? (a) Wax (b) Cooking oil (c) Essential oil (d) Albumin 20. Which contains a long chain ester? (a) wax (b) cooking oil (c) turpentine oil (d) cellulose 21. An example of a fatty acid obtained from a cooking oil is (a) acetic acid (b) stearic acid (c) benzoic acid (d) oxalic acid 22. Which is not a saturated fatty acid? (a) Palmitic acid (b) Stearic acid (c) Olei acid (d) Glyceric acid 23. Alkaline hydrolysis of cooking oil gives (a) soap (b) glycerol (c) fatty acid (d) both (a) and (b) 24. Hair and nail contains (a) cellulose (b) fat (c) keratin (d) lipid 25. Important constituent of cell wall is (a) lipid (b) cellulosewww.kalvisolai.com(c) protein (d) vitamin R.ANNAMALAI ALL THE BEST

“ All the Glitters are not Gold “”

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HIGHER SECONDARY SECOND YEAR Chemistry March - 2006 O

1. The isomerism exhibited by CH3- CH2- N and CH3- CH2- O - N=O is O a) position b) chian c) functional d) tautomerism 2. Which of the following nitro - compounds behave as an acid in the presence of strong alkali? a) Primary b) secondary c) tertiary d) both (a) and (b) 3. Conversion of diazonium chloride to chlorobenzene is called a) Sandmeyar’s reaction b) Stephan’s reaction c) Gomberg reaction c) schotten - Baumann reaction 4. Proteins are a) polypeptides b) polyacids c) polyphenols d) polyesters 5. Mixture of equal molecules of D (+) glucose D (-) fructose in called a) fruit sugar b) invert sugar c) cane sugar d) non-sugar 6. Oxidation of glycerol with bismuth nitrate gives a) meso-oxalic acid b) glyceric acid c) tartronic acid d) both (b) and (c) 7. According to lewis concept of acid and bases, ethers are a) neutral b) acidic c) basic d) amphoteric 8. The compound mixed with ethanol to serve as substitute for petrol is a) methoxy methanewww.kalvisolai.comb) ethoxy ethane c) methanol d) ethanal 9. Aldol is a) 2 - hydroxy butanol b) 3-hydroxy butanol c) 3-hydroxy butanal d) 2-hydroxy butane R.ANNAMALAIH O /Fe2+ 2 2 10. CH3CH(OH)COOH X. The X is

a) CH3COCOOH b) CH3CH2COOH c) CH3CHOHCHO d) CH2(COOH)2 11. For a reaction Ea = 0 and K=4.2 x 105 sec-1 at 300 K, the value of K at 310 K will be. a) 4.2x105 sec-1 b) 8.4x105 sec-1 c) 8.4x10-5 sec-1 d) unpredictable 12. The iron catalyst used in the Haber’s process is poisoned by

a) Pt b) H2 c) H2S d) As2O3 13. Curd is a colloidal solution of a) liquid in liquid b) liquid in solid c) solid in liquid d) solid and liquid 14. An emulsion is a colloidal solution of a) two solids b) two gases c) two liquids d) solid and liquid 15. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to a) Equivalent weight b) molecular weight c) Electrochemical equivalent d) one gram R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 26 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. In a simple cubic cell, each point on a corner is shared by a) One unit cell b) two unit cells c) eight unit cells d) four unit cells

-1 17. The change of entropy for the process H2O(liq) H2O (vap) involving Δ H(vap) = 40850Jmol at 373K is a) 120 J mol-1 K-1 b) 9.1 x 10-3 J mol-1 K-1 c) 109.52 J mol-1 K-1 d) 9.1 x 10-4 J mol-1 K-1 18. Which of the following does not result in an increase in the entropy? a) Rusting of iron b) crystallization of sucrose from solution c) Vaporization of camphor d) conversion of ice to water

19. For the homogenous gas reaction at 600K, 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g) the equilibrium constant Kc has the unit a) mol dm-3 b) (mol dm-3)-1 c) (mol dm-3)10 d) (mol dm-3)9

20. 2H2O(g) + 2Cl2(g) 4 HCl(g) + 5O2(g)

a) KP = KC b) KP > KC c) KP < KC d) KP = KC= 0 21. The transition element with the lowest atomic number is a) Scandium b) titanium c) zinc d) lanthanum 22. The elements in which extra electron enter (n-2)f orbital are a) s-block elements b) p-block elements c) d-block elements d) f-block elements 23. The isotope used as a power source in long mission space probes is a) U-235 b) Pu-235 c) Pu-238 d) U-238

24. The type of isomerism found in the complexes (Pt (NH3)4 [CuCl4] and (Cu(NH3)4 [PtCl4] a) ionization isomeirsmwww.kalvisolai.comb) co-ordination isomerism c) linkage isomerism d) ligand isomerism 25. After 24 hours 0.125g of the initial quantity of 1g of a radioactive isotope is left out. The half - life period is R.ANNAMALAI a) 24 hours b) 12 hours c) 8 hours d) 16 hours 26. Dual character of an electron was explained by a) Bohr b) Heisenberg c) De Broglie d) Pauli 27. The momentum of a particle which has De Broglie wavelength of 1Ao( h = 6.626 x 10-34 Kgm2s-1) is a) 6.66 x 10-23 Kg ms-1 b) 6.66 x 10-24 Kg ms-1 c) 6.66 x 10-34 Kg ms-1 d) 66.6 x 10-23 Kg ms-1 28. The order of ionization energy is a) s < p < d < f b) s > p > d > f c) s > d > p > f d) s < d < p < f 29. The general electronic configuration of carbon family is a) ns2 np2 b) ns2 np3 c) ns2 np1 d) ns2 np4 30. Which of the following compounds will not positive chromyl chloride test?

a) Cu Cl2 b) C6H5Cl c) Zn Cl2 d) HgCl2

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HIGHER SECONDARY SECOND YEAR Chemistry

June - 2006 1. Ethylene diamine forms glycol with

a) nitrous acid b) Na2Co3 solution c) NaHCO3 solution d) Bayer’s reagent 2. When ethers are exposed to air for a long time, they form a) peroxides b) halides c) oxides d) superoxides 3. The isomerism exhibited 1 propanal and methoxy ethane is a) chain b) position c) functional d) metamerism 4. The compound that does not answer idofom test is a) acetophenone b) isopropyl alcohol c) 2-pentanol d) benzophenone 5. The compound found as stony deposits in kidneys is a) Potassium Oxalate b) Oxalic acid c) Potassium Succinate d) calcium oxalate 6. Semiconductors which exhibit conductivity due to the flow of excess negatively charged electron are called a) Super conductors b) n-type semiconductors c) p-type semicondictors d) insulators 7. The amount of heat exchanged with the surrounding at constant temperature and pressure is called a) Δ E b) Δ H c) Δ S d) Δ G 8. If Δ G of a reaction is negative, the change is a) spontaneous www.kalvisolai.comb) non - spontaneous c) reversible d) none of these 9. For the homogenous gaseous reaction at 600K 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g), the

equilibrium constant Kc has the unit a) (mol dm-3)-1 b) mol dm-3 c) (mol dm-3)-4 d) (mol dm-3)-2 10. If the equilibrium constantR.ANNAMALAI for the formation of a product is 25, the equilibrium constant for the decomposition of the same product is 1 a) 25 b) c) 5 d) 625 25 11. De Broglie equation is a) λ = mv / h b) λ = hmv c) λ = hv / m d) λ = h / mv 12. The bond order of nitrogen molecule is a) 1 b) 2 c) 3 d) 4 13. Effective nuclear charge Z* can be calculated using the formula a) Z* = Z - S b) Z* = Z + S c) Z* = S - Z d) Z = Z* - S 14. The metalloid among the following is a) Pb b) P c) Ge d) Sn 15. The chemical composition of slag formed during the smelting process in the extraction of copper is

a) Cu2O + FeS b) Fe SiO3 c) Cu Fe S2 d) Cu2S + FeO R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 28 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. Organic compounds that does not undergo diazotization is a) m - toluidine b) aniline c) p - aminophenol d) benzyl amine

17. The intermediate formed on electrolytic reduction of nitrobenzene in conc. H2SO4 is

a) C5H5NH - NHC6H5 b) C6H5 - NHOH

c) C6H5 - N = N - C6H5 d) all of these 18. The compound that does not show tautomerism is a) Nitrobenzene b) nitro-methane c) nitro-ethane d) 2-nitropropane 19. The reducing sugar is a) sucrose b) cellulose c) starch d) glucose 20. The amino acid without chiral carbon is a) glycine b) alanine c) proline d) tyrosine 21. The half - life period of a first order reaction is 10 minutes. The rate constant is a) 6.93 x 102min-1 b) 0.693 x 10-2min-1 c) 6.932 x 10-2min-1 d) 69.3 x 10-1min-1 22. Tyndall’s effect is not observed in a) emulsions b) colloidal solutions c) true solutions d) none of these 23. Decomposition of hydrogen peroxide is retarded in the presence of

a) alcohol b) glycerin c) MnO2 d) MO 24. An example of gel is a) Paint b) Pumice - Stone c) Milk d) curd 25. The indicator suitable for the titration of oxalic acid against NaOH is a) methyl orange www.kalvisolai.comb) potassium permanganate c) Phenophthalein d) litmus 26. The transition element showing maximum oxidation state is a) Sc b) Ti c) Os d) Zn 27. Elements that form R.ANNAMALAIoxocations are a) lanthanides b) actinides c) noble gases d) base metals 28. The radioactive lanthanide is a) terbium b) lutetium c) promethium d) gadolinium 29. An example of ambidentate ligand is

- a) Cl b) NO 2 c) H2O d) NH2 27 30 30. Which is one of the following particles is used to bombard 13Al to give 15P and a neutron? a) α - particle b) β - particle c) neutron d) proton

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HIGHER SECONDARY SECOND YEAR Chemistry October - 2006 1. The metal used in galvansing iron sheets is a) chromium b) zinc c) copper d) silver 2. Among the lanthanides elements, with the increase in atomic number the tendency to act as reducing agent a) increase b) decrease c) no change d) none of these 3. The long mission space probes use ______as power source a) Pu b) U c) Th d) Pm 4. Which if the following is cationic complex?

a) K4 [Fe(Cn)6 b) [Cu(NH3)6]Cl2 c) K3 [Cr(C2O4)3] d) K3[Fe(CN)6] 5. Loss of - particle is equivalent to a) increase of one proton only b) decrease of one neutron c) loss of proton d) both (a) and (b) 6. The first order rate constant of a reaction is 0.0693 min-1. Then the required for 50% completion of a reaction is a) 10 min b) 1 min c) 100 min d) 50 min 7. In case of physical adsorption, there is desorption when a) Temperature increase b) Temperature decrease c) Pressure increase d) concentration increase 8. Smoke is a colloidal solution of a) gas in solid www.kalvisolai.comb) solid in gas c) gas in liquid d) liquid in gas 9. Colloidal medicine are more effective because a) they are clean b) they are easy to prepare c) the germs move towardsR.ANNAMALAI them d) the are easily assimilated and adsorbed 10. When sodium acetate is added to a solution of acetic acid, the degree of ionization of acetic acid a) increases b) decrease c) does not change d) becomes unity 11. The nitro group can be reduced to primary amino group by

a) Sn/con.Hcl b) Zn dust c) Zn/NH4Cl d) Zn/NaOH 12. The organic compound that undergoes carbylamine reaction is

+ - a) (C2H5)2NH b) C2H5NH2 c) (C2H5)3N d) (C2H5)4N I 13. The nitrogen compound used in the preparation of sulpha drugs is a) methylamine b) nitromethane c) amino benzene d) nitrobenzene 14. Nucleic acid is made up of a) an organic base b) sugar unit c) phosphoric acid d) all of these 15. Ultimate product of hydrolysis of protein is a) aniline b) aliphatic acid c) amino acid d) aromatic acid

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16. The circumference of the circular orbit of electron is an integral multiple of its a) frequency b) momentum c) mass d) wavelength

17. The nature of hybridization in IF7 molecule is a) Sp2d2 b) Sp3d4 c) Sp3d3 d) sp2d4 18. On moving down a group, the radius of an ion a) decreases b) increase c) first increases and then decreases d) remains a constant 19. The toxin element of boron family is a) boron b) indium c) thallium d) gallium 20. The general outer electronic configuration of d block element is a) (n - 1) d1-10 b) (n - 1) d1-10 ns1-2 c) (n - 1) d10 ns1-2 d) (n - 1)d5 ns1 21. The crystal structure of CsCl is a) simple cube b) face - centred cube c) body - centred cube d) edge centred cube 22. Change in Gibbs free energy is given by a) Δ G = Δ H + T Δ S b) Δ G = Δ H -T Δ S c) Δ G = Δ H. T Δ S d) none of these 23. Δ H and Δ S are respectively. For the reaction constant 2Cl(g) Cl2(g) the signs of a) +, - b) +, + c) -, - d) -, +

24. If the equilibrium constants of the reactions 2A B is K1and B 2A is K2, then 2 2 a) K1=2K2 b) K1= 1/K2 c) K1 = ( K2) d) K1= (1/K1) 25. When Δ ng in a homogeneouswww.kalvisolai.com gaseous equilibrium is positive, then a) Kp = Kc b) Kp < Kc c) Kp > Kc d) Kp = Kc / 2 26. The characteristic odour of lower phenols is ______a) carbolic acid b) fruity c) oil of bitter almonds d) rotten fish 27. Oxygen atom of etherR.ANNAMALAI is a) Very active b) inert c) oxidizing d) replaceable 28. Diethyl ether behaves as a a) Lewis acid b) lewis base c) neutral compound d) bronsted acid 29. The formation of a cyanohydrins with a ketone is example of a) electrophilic substitution b) nucleophilic addition c) nuclerophilic substitution d) electrophilic addition

30. The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is a) metamerism b) functional isomerism c) chain isomerism d) position isomerism

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH-2007 1. Aniline differs from ethylamine in its reaction with

a) CH3 I b) CHCl3 and caustic KOH

b) HNO2 d) CH3 COCl 2. The compound most reactive towards electrophilic nitration is a) Methyl benzene b) Benzene c) Benzoic acid d) Nitrobenzene. 3. Nitro-acinitro tautomerism is exhibited by a) nitromethane b) nitrobenzene c) chloropicrin d) o-toluidine 4. The reducing sugar among the following is a) sucrose b) cellulose c) glucose d) starch 5. Which is not true of amino acid? a) It forms Zwitterion b) Has isoelectric point c) Dual behaviour d) Insoluble in NaOH solution 6. The compound that reacts the fastest with Lucas reagent is a) 1-butanol b) 2-butanol c) 1-propanol d) 2-methyl -2-propanol. 7. According to Lewis concept of acids and bases, ethers are a) acidic b) basic c) neutral d) amphoteric 8. Zeisel’s method of detection and estimation of alkoxy group in alkaloids involves the reaction of ether with www.kalvisolai.com a) HI b) Cl2 c) PCl5 d) AlCl3 9. Schiff’s reagent gives pink colour with a) acetone b) acetaldehyde c) ethanol d) ether. 10. The acid that cannotR.ANNAMALAI be prepared from Grignard reagent is a) Formic acid b) Acetic acid c) propionic acid d) Benzoic acid 11. 50% of a fist order reaction is completed in 20 minutes. The time required for 75% completion is a) 60 minutes b) 10 minutes c) 40 minutes d) 80 minutes 12. Colloids are purified by a) precipitation b) coagulation c) dialysis d) filtration 13. In case of physical adsorption, there is desorption when a) temperature decreases b) temperature increases c) pressure increases d) concentration increases 14. Fog is a colloidal solution of a) liquid in gas b) gas in Liquid c) gas in solid d) solid in gas. 15. The indicator used in the titration of ammonium hydroxide with hydrochloric aicd is a) KMnO b) Methyl oranre c) phenolphthalein d) Litmus.

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16. An ion leaves its regular site and occupies a position in the space between the lattice sites. This defect is called as a) Schottky defect b) Frenkal defect c) Impurity defect d) Vacancy defect 17. When a liquid boils, there is a) an increase in entropy b) a decrease in entropy c) an increase in heat of vaporisation d) an increase in free energy 18. The amount of heat exchanged with the surroundings at constant pressure is called a) Δ E b) Δ H c) Δ S d) Δ G

19. In the reversible reaction 2HI H2 + I2, Kp is a) greater than kc b) less then kc c) equal to kc d) zero 20. Which of the following gaseous equlibria is favoured by increase temperature ?

-1 a) N2O4 2NO2; Δ H =+59 kJ mol -1 b) N2+ 3H2 2NH3; Δ H =-22 k cal mol -1 c) 2SO2+ O2 2SO3; Δ H =-47 k cal mol d) Both (b) and (c) 21. Bordeaux mixture contanins

a) AgNO3+HNO3 b) ZnSO4+H2SO4 c) CuSO4+Ca(OH)2 d) KMnO4+HCl 22. The compound used in gas lamp meterial is

a) MnO2 b) CeO2 c) N2O5 d) Fe2O3 23. The radioactive lanthanide is a) Gadolinium b) Lutetium c) promethium d) Cerium 24. An example of a chelating ligand is www.kalvisolai.com- a) chloro b) Bromo c) en d) NO2 25. Radioactivity is due to a) Stable electronic confiuration b) stable nucleus c) unstable nucleus R.ANNAMALAId) unstable elctronic configuration. 26. Which of the particles having same kinetic enargy, would have the maximum de Brogile de wavelength. a) Proton b) neutron c) α particle d) β particle 27. Inter-molecular hydrogen bonding is present in

a) HF b) H2o c) ethanol d) all of these 28. The scale which is based on an empirical realition between the energy of a bond and the electronegativities of bonded atoms is that of a) Pauling b) Mulliken d) Sanderson d) Alfred Rochow. 29. An element is burnt in limited supply of air to given oxide A which on treatment with water gives an acld B. Acid B on hearting gives and C which gives yellow prectipilite with silver nitatate Solution. Oxide A is

a) P2O3 b) SO2 c) CO2 d) NO2 30. The ion with maximum number of unpaired electons is a) Mg2+ b) Ti3+ c) V3+ d) Fe2+ R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 33 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

HIGHER SECONDARY SECOND YEAR Chemistry JUNE-2007 1. Nitromethane on condensation with acetaldehyde gives a) 1-nitropropane b) 1-nitro-2-propanol c) 2- nitro -1-propanol d) 3- nitropropanol 2. The basic character of amines is due to the a) tetrahedral structure b) presence of nitrogen atom c)electronegativity of nitrogen d) presence of lone pair of electrons. 3. Which of the following compounds has the smell of bitter almonds? a) Aniline b) Nitromethane c) Benzene sulphonic acid d) Nitrobenzene 4. Sucrose contains glucose and fructose linked by

a) C1-C1 carbon b) C1-C2 carbon c) C1-C4 carbon d) C1-C6 carbon 5.The building blocks of proteins are a) α -hydroxy acid b) α -amino acid c) β -hydroxy acid d) β-amino acid 6. The compound which reacts fastest with Lucas reagent is a) butan -1-ol b) butan-2-ol c) 2-methyl-1- propanol d) 2-methyl-2- propanol. 7. According to Lewis concept of acids and bases, ethers are a) acidic b) basic c) neutral d) amphotreic. 8. The ether used in perfumerywww.kalvisolai.com is a) dithyl ether b) dimethyl ether c) methyl phenyl ether d) diphenyl ether 9. Tertiary butyl alcohol can be prepared by treating methyl magnesium iodide with

a) formaldehyde ( HCHO ) b) acetaldehyde ( CH3CHO ) c) acctone ( CH COCHR.ANNAMALAI) d) carbon dixdde ( CO ) 3 3 2 10. The strongest acid among the following is

a) Cl CH2 COOH b) Cl3 C COOH c) CH3COOH d) Cl2 CH COOH 11. Hydrolysis of an ester by dilute HCI is an example for a) zero order rection b) first order rection c) pseudo - first order rection d) second order rection 12.Colloidal modicines are more effective because a) they are clean b) they are aesy to prepare c) the germs move towards them d) they are easily assimilated and absorbed 13. Which type of colloid is a sol? a) Solid in liquid b) liquid in solid c) Solid in Solid d) Gas in Solid

14. The platinum catalyst used in the oxidation of SO2 by contact process is poisoned by

a) As2O3 b) V2O5 c) Fe2O3 d) CuCl2. R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 34 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

15. If 0.2 ampere can deposit 0.1978 g of copper in 50 minutes, how much of copper will be deposited by 600 coulombs? a) 19.78 g b) 1.978 g c) 0.1978 g d) 197.8 g. 16. In a simple cubic cell, each point in a corner is shared by a) one unit cell b) two unit cells c) four unit cells d) eight unit cells. 17. When a liquid boils, there is a) an increase in entropy b) a decrease in entropy c) an increase in free energy d) an increase in heat of vaporisation.

0 18. The entropy change involved in the process of H2O (s) H2O (l) at 0 c and 1atm pressure -1 involving Δ H fusion = 6008 J mol is a) 22.007J mol-1 K-1 b) 22.007J mol K-1 c) 220.07 J mol-1 K-1 d) 2.2007 J mol K-1

19. In an endothermic equilibrium reaction. if K1 and K2 are the equilibrium constants at T1 and T2

temperatures repectivly and if T2 is greater than T1 than

a) K1 < K2 b) K1 > K2 c) K1 = K2 d) none of these. 20. The maximum yield of ammonia by Haber’s process is a) 78 % b) 97% c) 37% d) 89%

21. K2Cr2O7 reacts with KI and dilute sulphuric acid and liberates

a) O2 b) I2 c) H2 d) SO2 22. The oxide used in gas lamp material is

a) MnO2 b) N2O5 c) CeO2 d) Fe2O3 23. Radioactive element of lanthanide is a) Cerium www.kalvisolai.comb) Promethium c) Gadolinium d) Lutetium. -4 24. In [Fe(CN)6] the central metal ion is a) Fe b) Fe+2 c) Fe+3 d) (CN)- 25. When N15 is bombarded with a proton it gives C12 and 7 R.ANNAMALAI6 a) α -paeticle b) β-particle c) neutron d) proton.

26. The hybridisation involved in XeF6 is a) sp3 d3 b) sp3 d2 c) sp3 d d) sp3 27.Intramolecular hydrogen bonding is present in a) m- nitrophenol b) o- nitrophenol c) p- nitrophenol d) none of these.

28. When XA>>XB, A-B boud is a) polar covalent b) non- poar covallent c) ionic d)metallic. 29. Which of the following does not belong to group 14? a) C b) Si c) Ga d) pb. 30. The transition element with the lowest atomic number is a) Zn b) Sc c) Ti d) La.

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HIGHER SECONDARY SECOND YEAR Chemistry

SEPTEMER-2007 1. The colour of purple of cassius is a) purple b) blue c) bluish green d) apple green 2. ______form oxocations. a) Lanthanides b) Actinides c) Noble gases d) Alkali metals. 3. Alloys of Lanthanides are called as a) Misch metals b) metallotds c) plate metals d) Actinides.

II 4- 4. In [Fe (CN)6] the central metal ion is a) Fe b) Fe+2 c) Fe+3 d) (CN)-

27 30 5. Which one of the following particles is used to bombard 13 Al to give 15 P and a neutron? a) α - particle b) Deuteron c) proton d) Neutron. 6. The sum of the powers of the concentration terms that occur in the rate equatic is called a) molecularity b) order c) rate d) rate constant. 7. The phenomenon of Tyndall’s effect is not observed in a) emulsion b) colloidal Solution c) true solution d) none of these. 8. Coconut charcoal has a great capacity of the ______of gases. a) adsorption b) absorption c) desorption d) all of these. 9. Emulsifying agent is used for a) precipitation of an emulsion b) coagulation of an emulsion c) stabilization of anwww.kalvisolai.com emulsion d) none of these. 10.When one coulmb of electricity is passed through an electrolyte solution the mass deposited on the electrode is equal to a) equivalent weightR.ANNAMALAI b) molecular weight c) electrochemical equivalent d) one gram 11. CCl3 NO2 is used as a) soil sterilizing b) organic synthesis c) good solvent d) antioxidant 12. The organic compound that undergoes carbylamine reaction is

+ - a) (C2 H5)2 NH b) C2 H5NH2 c) (C2 H5)3 N d) (C2 H5)4 N I 13. The reaction between benzene diazonium chloride and benzene in the presence of NaOH is a) perkin’s reaction b) Gattermann’s reaction c) Sandmeyer reaction d) Gomberg- Bachmann reaction. 14. Glucose forms ______with acetic anhydride and sodium acetate. a) di-acetate b) tetra- acetate c) penta- acetate d) hexa - acetate 15. The precipitation of protein is called a) peptisation b) denaturation c) renaturation d) none of these. 16. Dual character of an electron was explained by a) Bohr b) Heisenberg c) de Broglie d) Pauli.

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17. Energy levels of molecular orbitals have been determined experimentally by a) Spectroscopic studies b) x-ray diffraction c) Crystallographic studies d) none of these.

18. When XA>>XB, A-B boud is a) polar covalent b) non- poar covallent c) ionic d) metallic. 19. The noble gases are unreactive because they a) have same number of electrons b) have an atomicity of one c) are gases with low density d) have stable electronic configuration 20. Ferrochrome is an alloy of a) Cr, C, Fe, Ni b) Cr, Co, Ni, C c) Fe, Cr d) Cr, Ni, Fe 21. The total number of atoms per unit cell in bcc is a) 1 b) 2 c) 3 d) 4 22. If Δ G for a reaction is negative, the change is a) spontaneous b) non- spontaneous c) reversible d) irreversible

23. For the reaction 2Cl(g) Cl2(g) the signs of Δ H and Δ S respectively are a) +, - b) +, + c) - , - d) -, +

24. In a reaction 2O3 3O2 the value of Kc is [O ]3 [O ]2 [O ]3 [O ] a) 3 b) 2 c) 2 d) 3 2 [O ]3 [O ]2 [O ] [O2] 3 3 2

25. In the synthesis of NH3 between N2 and H2 reaction the unit of Kp is a) lit2 mol-2 www.kalvisolai.comb) atm-2 c) lit atm-1 d) atm-1 26. A compound that reacts fastest with Lucas reagent is a) butan -1-ol b) butan-2-ol c) 2-methyl propan -1-ol d) 2-methyl propan-2-ol 27. According to LewisR.ANNAMALAI concept of acids and bases, ethers are a) neutral b) acidic c) basic d) amphoteric. 28.Which among the follwing is a an unsymmetrical ether?

a) C6H5-O-C6H5 b) C2H5-O-C2H5 c) CH3-O-CH3 d) C6H5-O-CH3 29. schiff’s reagent gives pink colour with a) acetone b) acetaldehyde c) ethyl alcohol d) methyl acetate. 30. Which order of arrangement is correct in terms of the strength of the acid?

a) CH3 CH2 COOH > CH3 COOH < HCOOH < ClCH2 COOH

b) ClCH2 COOH < HCOOH < CH3 COOH < CH3 CH2 COOH

c) CH3 CH2 COOH < CH3 COOH < HCOOH < ClCH2 COOH

d) HCOOH > CH3 CH2 COOH < CH3 COOH > ClCH2 COOH

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH - 2008 1. Silver obtained from silver coin is purified by fusion with

a) AgNO3 b) HNO3 c) H2SO4 d) borax 2. Alloys of lanthanides are called as a) plate metals b) actinides c) misch- metals d) metalloids 3. The common oxidation state of actinide is a) +2 b) +3 c) +4 d) +6

4- 4. [FeF6] is paramagnetic because a) F-is a weaker ligand b) F- is a stronger ligand c) F- is a chelating ligand d) F-is a flexidentate ligand. 5. In nuclear reaction ______is / are balanced on both sides. a) mass b) number of atoms c) mass number d) atomic number and mass number. 6. Half-life period of a first order reaction is 20 min. The time taken for the completion of 99.9% of the reaction is a) 20 min b) 2000 min c) 250 sec d) 200 min 7. The Tyndall effect is associated with colloidal particle due to a) scattering of light b) presence of charge c) diffusion of light d) reflection of light 8. Colloids are purifiedwww.kalvisolai.com by a) precipitation b) coagulation c) dialysis d) filtration. 9. Which one of the following factors is false regarding catalyst? a) samll quantity is enough b) Initiate the reaction c) Remains unchangedR.ANNAMALAI in mass and chemical composition d) Specific in its action. 10. When pH of a solution is 2. the hydrogen ion concentration in moles litre-1 will be a) 1x10-12 b) 1x10-4 c) 1x10-7 d) 1x10-2

11. The -NO2 group in nitro-alkane is converted into-NH2 group by the reagent

a) Zn / NH4Cl b) Zn dust c) Sn / HCl d) Zn / NaOH. 12. The organic compound that undergoes carbylamine reaction is

+ - a) (C2 H5)2 NH b) C2 H5NH2 c) (C2 H5)3 N d) (C2 H5)4 N I 13. Use of chloropicrin is as a) Explosive b) Dye c) Anaesthetic d) Sterilizing agent. 14. The amino acid without chiral carbon is a) Glycine b) Alanine c) Proline d) Tyrosine. 15. Sorbitol and Mannitol are a) isomers b) polymers c) epimers d) dimers

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16.Hybridisation in SF6 molecule is a) sp3 b) sp3d2 c) sp3 d d) sp3d3 17. In a molecule eight electrons are present in bonding molecluar orbital and four electrons are present in anti- bonding molecular orbital. Its bond order is a) 3 b) 4 c) 2.5 d) 2 18. The metal of having maximun electron affinity is a) sodium b) calcium c) gold d) silver 19. Which of the following has the property of etching on glass? a) HI b) HF c) HBr d) HCl 20. paramagnetism is the property of a) paired electrons b) completely filled electronic subshells c) unpaired electrons d) completely vacant electronic subshells 21. An example for metaldeficiency defect is a) NaCl b) AgCl c) FeS d) CsCl 22. If Δ G for a reaction is negative, the change is a) spontaneous b) non- spontaneous c) reversible d) irreversible 23. Entropy (s) and the entropy change (Δ s) of a process a) are path functions b) are state functions c) are constants d) have no values 24. Which one of the following has-negavtive value for Δ ng? a) H (g) + I (g) 2 HI (g) 2 2 www.kalvisolai.com b) PCl5 (g) PCl3 (g) + Cl2 (g)

c) 3 H2 (g) + N2 (g) 2 NH3 (g)

d) 2 H2 O (g) + 2Cl2 (g) 4 HCl (g) + O2 (g) 25. State of a chemical equilibriumR.ANNAMALAI is a) dynamic b) Stationary c) both (a) & (b) d) none of these 26. A compound that undergoes bromination easily is a) benzoic acid b) benzene c) phenol d) toluene 27. Ether is formed when alkyl halide is treated with sodium alkoxide. The method is known as a) Hoffimann’s reaction b) Williamson’s synthesis c) Wurtz reaction d) Kolbe’s reaction 28. When ether is exposed to air for some time, an explosive substance produced is a) peroxide b) TNT c) superoxide d) gun cotton

29. Hydrogenation of benzoyl chloride in the presence of pd and BaSO4 gives a)phenol b) benzoic acid c) benzyl alcohol d) benzaldehyde 30. Concentrated solution of sodium acetate on electrolysis gives a) ethane b) propane c) methane d) butane

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2008

1. Which of the following is wrong statement regarding K2 Cr2 O7? a) Oxidising agent b) Used in tanning dustry c) Soluble in water d) Reduces ferric sulphate to ferrous sulphate 2. The common oxidation state of lanthanides is a) +2 b) +1 c) +3 d) +4 3. Alloys of lanthanides are called as a) misch metals b) metalloids c) Plate metals d) actindes

4. The co-ordination number of Cr(III) in [ Cr (H 2O) 4 Cl2 ] Cl. 2 H2O is a) 3 b) 4 c) 6 d) 2

8 8 5. The reaction 5B 4Be akes place due to a) α -decay b) β - decay c) electron capture d) positron decay 6. In a first order reaction the concentration of the reactant is increased by 2 times. The rate of the reaction is increased by a) 2 times b) 4 times c) 10 times d) 6 times 7. Colloidal medicines are more effective because a) they are clean b) they are easy to prepare c) they are easily assimilated and adsorbed d) the germs move towards them 8. Which one is correct factor that explains the increase of reaction by a catalyst? a) Shape selectivty b) particle size c) Increase of freewww.kalvisolai.com energy d) Lower of activation energy

9. The function of FeCl3 in the conversion of Fe (OH)3 precipitate into a colloid is a) peptising agent b) emulsifying agent c) reducing agentR.ANNAMALAI d) precipitating agent 10. Equivalent conductance of acetic acid at 250c is 80 ohm-1cm2(gram equivalent)-1 and at infinite dilution is 400 ohm-1 cm2 (gram equivalent)-1 The degree of dissociation is a) 1 b) 0.2 c) 0.1 d) 0.3

NaNO2 / HCl 11. C H NH2 X. X is 6 5 273 K

a) C6 H5 Cl b) C6 H5 NHOH c) C6 H5 N2 Cl d) C6 H5 OH 12.Oil of mirbane is a) nitrobenzene b) benzaldehyde c) methyl salicylate d) aspirin 13. Primary amine acts as a) electrophile b) Lewis acid c) free radical d) Lewis base 14. Ultimate product of hydrolysis of proteins is a) anline b) aliphatic acid c) amino acid d) aromatic acid.

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15. Inversion of sucrose refers to a) oxidation of sucrose b) reduction of sucrose c) sucrose to glucose and fructose d) polymerisation of sucrose

313.6 16. E = , E = -34.84, n value is n n2 n a) 4 b) 3 c)2 d) 1 17.water exists in liquid state. This is due to a)high boiling point b)low boiling point c)freezing point is zero d) hydrogen bond. 18. Effective nuclear charge is given by the equation a) z * = z - s b) z * = z + s c) z * = s - z d) z = z * - s 19.the compound used to arrest the bleeding is

a) K2SO4 b) potash alum c) Al2(SO4)3 d) KI 20. The number of unpaired electrons in, Ti3+ is 1. Its magnetic moment in BM is a)1.414 b) 2 c) 1.732 d) 3 21. In Bragg’s equation n represents a) number of moles b) Avogadro number c) quantum number d) order of reflection 22. Change in Gibbs free energy is given by a) Δ G = Δ H+T Δ S b) Δ G= Δ H -T Δ S c) Δ G = Δ H x T Δ S a) Δ G= T Δ S + Δ H 23. H O(l) H O(g). In this process the entropy 2 www.kalvisolai.com2 a) remains constant b) decreases c) increases d) becomes zero 24. State of chemical equilibrium is a) dynamic R.ANNAMALAIb) stationary c) none of these d) both (a) and (b) 25. H2(g)+I2(g) 2HI(g). The equilibrium constant Kc for this reaction is 16. Kp value is 1 a) b) 4 c) 64 d) 16 16

26. The reaction of ethylene glycol with PI3 gives

a) ICH2 CH2I b) CH2 = CH2 c) CH2 = CHI d) ICH = CHI

27. The number of ether isomers possible for C4 H10O is a) 7 b) 5 c) 4 d) 3 28. Oxygen atom of ether is a) more reactive b) replaceable c) oxidising d) comparatively inert 29. The compound that does not reduce Fehling solution is a) formaldehyde b) acetaldehyde c) benzaldehyde d) propionaldehyde 30. Ethylene dicyanide on hydrolysis gives a) oxalic acid b) succinic acid c) adipic acid d) propionic acid R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 41 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

HIGHER SECONDARY SECOND YEAR Chemistry SEPTEMBER - 2008 1. The number of secondary alcoholic group in glycerol is a) 1 b) 2 c) 3 d) 0 2. When ethyl iodide is treated with dry silver oxide. It forms a) ethyl alcohol b) diethyl ether c) silver ethoxide d) ethyl methyl ether 3. propanone is usually characterised by a) Fehling’s solution b) Iodoform test c) Schiff’s test d) Tollen’s reagent 4. The compound used in the preparation of triphenyl methane dye is a) methanol b) phenyl methanal c phenyl methanol d) ethanal 5. The acid that cannot be prepared by Grignard reagent is a) acetic acid b) benzoic acid c) formic acid d) butyric acid 6. An example of metal deficiency defect is a) NaCl b) AgCl c) CsCl d) FeS 7. If Δ G for a reaction is negative, the change is a) spontaneous b) non-spontaneous c) reversible d) irreversible

-1 8. The entropy change for the process, water (liq) to water (vap) involving Δ H(vap) =40850 J mol at 373K is a) 22.007J mol -1 K -1 b) 7.307J mol -1 K -1 c) 109.52J mol -1www.kalvisolai.com K -1 d) 0.2287J K -1 9. In the reversible reaction 2HI H2 + I2, Kp is

a) greater than Kc b) less than Kc c) equal to Kc d) zero

10. The optimum range of temperature used in contact process for the manufacture of SO3 is a) 4000C to 4500CR.ANNAMALAIb) 18000C to 27000C c) 5000C to 5500C d) 3500C to 4500C 11. Dual character of an electron was explained by a) Bohr b) Heisenberg c) de Broglie d) Pauli 12. Inter- molecular hydrogen bonding is present in a)o-nitrophenol b)salicylic acid c) o- hydroxy benzaldehyde d) hydrogen fluoride 13. Which among the following has higher electron affnity value? a) Fluorine b) chlorine c)bromine d)iodine 14.The compound used in smoke screen is

a) PCl3 b) PCl5 c) PH3 d) H3 PO3 15.The Catalyst used in the manufacture of polythene is

a) V2O5 b) Fe c) Mo d) TiCl4.

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16. Primary amine acts as a) electrophile b) lewis base c) Lewis acid d) free radical

NaNO2 17. C6 H5 NH2 X. Identify X. HCl 0oC

a) C6 H5 Cl b) C6 H5 NHOH c) C6 H5 N2Cl d) C6 H5 OH 18. Which of the following will not undergo Hofmann’s bromamide reaction? a) Ethanamide b) Propanamide c) Methanamide d) Phenyl methanamide 19. Glucose is not oxidised to gluconic acid by

a) Br2 / H2O b) Fehling’s solution

c) Tollen’s reagent d) Conc. HNO3 20. The optically inactive amino acid is a) glycine b) alanine c) proline d) phenyl alanine

21. Decomposition of nitrogen pentoxide CCl4 is an example for a) second order reaction b) third order reaction c) zero order reaction d) first order reaction 22. Fog is the colloidal solution of a) gas in liquid b) liquid in gas c) gas in solid d) solid in gas 23. An example of lyophilic colloid is a) Sulphur in water b) phosphorus in water c) starch d) all of these 24. Colloids are purifiedwww.kalvisolai.com by a) precipitation b) coagulation c) dialysis d) filtration 25. When 10-6 mole of a monobasic strong acid is dissolved in one litre of solvent,the pH of the solution is a) 6 b)R.ANNAMALAI 7 c) 4 d) less than 6 26.The correct electronic configuration of chromium is a) [Ar] 3d6 4s0 b) [Ar] 3d5 4s1 c) [Ar] 3d4 4s2 d) [Ar] 3d3 4s2 4p1 27. The maximum oxidation state exhibited by lanthanides is a) + 3 b) + 4 c) + 6 d) + 7

28. ThO2 is used in a) toys b) tracer bullets c) gas lamp materials d) dyeing cotton 29. An example of bidentate chelating ligand is

- - 2- a) NO 2 b) NO 3 c) en d) SO4 30. Half -life period of a radioactive element is 1500 years. The value of disintegration constant in terms of seconds is a) 0.1465 x 10-10sec-1 b) 0.2465 x 10-10sec-1 c) 0.1465 x 10-8sec-1 d) 0.3645 x 10-10sec-1

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HIGHER SECONDARY SECOND YEAR Chemistry

MARCH - 2009 1. When an aqueous solution of benzene diazonium chloride is boiled, the product formed is

a) benzyl alcohol b) benzene + N2 c) phenol d) phenyl hydroxylamine

2. Oxidation of aniline with acidfied K2Cr2O7 gives a) p-benzoquinone b) benzoic acid c) benzaldehyde d) benzyl alcohol 3. When among the following is a tertiary amine?

a) (CH3)3 - C - NH2 b) CH3 - CH - NH - CH3

CH3

c) (CH3)2 - N - C2 H5 d) CH3 - CH2 - C - C2 H5

NH2 4. The reducing sugar among the following is a) sucrose b) cellulose c) glucose d) starch 5. The amino acid without chiral carbon is a) Alanine b) Glycine c) proline d) Thyrosine 6. The active component of dynamite is a) kieselghur b) nitroglycerine c) nitrbenzene d) trinitrotoluene 7. Anisole on bromination yields a) m- bromoanisole b) o-bromoanisole c) o-&p-bromoanisole d) benzoic acid 8. Diethyl ether can be decomposed with a) HI b)www.kalvisolai.com KMnO c) NaOH d) H O 4 2 9. The compound that does not undergo cannizzaro reaction is a) formaldehyde b) benzaldehyde c) acetaldehyde d) trimethyl acetal dehyde 10. Which one of the followingR.ANNAMALAI is least acidic? a) C2 H5 OH b) CH3 COOH c) C6 H5 OH d) ClCH2 COOH 11. The excess energy which a molecule possesses to become active is known as a) Kinetic energy b) potential energy c) activation energy d) threshold energy

12. In the reaction between oxalic acid and potassium permanganate, in the presence of dil. H2SO4 ______acts as an autocatalyst.

a) K2SO4 b) MnSO4 c) MnO2 d) Mn2O3 13. In the case of physical adsorption, there is desorption when a) temperature increases b) temperature decreases c) pressure increases d) concentration increases 14. The blue colour of the sky is due to a) Tyndall effect b) Brownian movement c) electrophoresis d) electro-osmosis 15. Faraday’s laws of electrolysis are related to a) atomic number of the cation b) atomic number of the anion c) equivalent weight of the electrolyte d) speed of the cation

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16. The number of close neighbours in a body centred cubic lattice of identical sphere is a) 6 b) 4 c) 12 d) 8 17. All the naturally occurring processes proceed spontaneously in a direction which leads to a) decrease of entropy b) increase in enthalpy c) increase in free energy d) decrease of free energy 18. The percentage efficiency of a heat engine that operates between 127oC and 27oC is a) 20% b) 50% c) 100% d) 25% 19. For the homogeneous gas reaction at 600 K

4 NH3 (g) + 5 O2 (g) 4 NO (g) + 6 H2O (g)

the equilibrium constant Kc has the unit a) (mol dm-3)-1 b) (mol dm-3) c) (mol dm -3)10 d) (mol dm -3)-9

20. If the equilibrium constant of the reaction 2A B is K1 and the equilibrium constant of the

reaction B 2A is K2, then 1 1 a) K = b) K = 2 K c) K = d) K = (K )2 1 K 1 2 1 K 2 2 1 2 2 21. Which of the following ions will give colourless aqueous solution? a) Ni2+ b) Cu+ c) Cu2+ d) Fe2+ 22. Maximum oxidation state exhibited by lanthanides is a) +1 b) +2 c) +3 d) +4 23. Which of the following is a radioactive lanthanide ? a) Pu b) Ac c) Th d) Pr 24. Which one of the followiwww.kalvisolai.comng is a cationic complex? a) K4 [ Fe (CN) 6 ] b) [ Cu (NH3 ) 4 ]Cl2

c) K3 [ Cr (C2 O4 ) 3] d) K3[ Fe (CN) 6] 27 30 25. Which one of the following particles is used to bombard 13 Al to give 15 P and a neutron? a) α -particle R.ANNAMALAIb) proton c) Neutron d) Deutreon 26. The intramolecular hydrogen bonding is present in a) o-nitrophenol b) m-nitrophenol c) p-nitrophenol d) p-aminophenol

2- 27. The hybridisation in SO4 ion is a) sp3 b) sp3 d2 c) sp3 d d) sp3 d3 28. The electron affinity of an atom is a) directly proportional to its size b) inversely proportional to its size c) independent of its size d) none of these 29. An element which was burnt in limited supply of air to give oxide A, which on treatment with water

gives an acid B. Acid B on heating gives acid C which gives yellow precipitate with AgNO3 solution. Compound A is

a) SO3 b) NO2 c) P2O3 d) SO3 30. A metal which precipitates gold from its aurocyanide complex is a) Cr b) Ag c) Pt d) Zn R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 45 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2009 1. Compound which undergoes iodoform test is a) 1 - pentanol b) 2 - pentanone c) 3 - pentanone d) pentanal 2. The preparation of diethyl ether by williamson’s synthesis is a/an a) nucleophilic addition reaction b) electrophilic substitution reaction c) electrophilic substitution reaction d) nucleophilic substitution reaction 3. In the formation of oxonium salt when ethereal oxygen reacts with strong mineral acid is called a) electronation b) protonation c) deprotonation d) dehydration 4. Which of the following compounds is oxidized to give ethyl methl ketone? a) 2 - propanol b) 2 - pentanone c) 1 - butanol d) 2 - butanol 5. Ethylene dicyanide on hydrolysis using acid gives a) oxalic acid b) succinic acid c) adipic acid d) propionic acid 6. The size of the anion in Frenkel defect crystal is a) larger than the cation b) smaller than the cation c) equal in size with cation d) both are larger in size 7. When a liquid boils, there is a) an increase in entropy b) a decrease in entropy c) an increase in heat of vaporization d) an increase in free energy 8. Change in Gibbs free energy is given by a) Δ G = Δ H + T www.kalvisolai.comΔ S b) Δ G = Δ H -T Δ S c) Δ G = Δ H x T Δ S d) Δ G = Δ H / T Δ S

9. In the reversible reaction 2HI(g) H2(g) + I2(g) Kp is

a) greater than Kc b) less than Kc c) equal to Kc d) 0 10. In the Haber processR.ANNAMALAI the yield of ammonia is greater a) at high pressure b) at low pressure c) at high temperature d) in absence of catalyst 11. Dual character of an electron was explained by a) Bohr b) Heisenberg c) de Broglie d) Pauli 12. Number of spherical nodes in 2s orbital is a) 1 b) 2 c) 3 d) 4 13. On moving down the group, the radius of an ion a) decrease b) increase c) no change d) all of these 14. Which of the following shows negative oxidation state only? a) Br b) F c) Cl d) I 15. The outer electronic configuration of chromium is a) 3d64s0 b) 3d54s1 c) 3d44s2 d) 3d34s24p1

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16. Innirtoalkanes - NO2 group is converted to NH2 group by the reaction with

a) Sn/HCl b) Zn dust c) Zn/NH4Cl d) Zn/NaOH 17. The tertiary nitro compounds is a) 2-nitro propane b) 1 - nitropropane c) 1 - nitro-2, 2-dimathyl propane d) 2-nitro, 2 - methlpropane 18. The intermediate formed in the nitration of benzene is a) Arrenium ion b) Carbon ion c) Oxonium ion d) Nitrite ion 19. Inversion of sucrose refers to a) oxidation of sucrose b) reduction of sucrose c) hydrolysis of sucrose to glucose and fructose d) polymerization of sucrose 20. A dipeptide does not have a) two peptide units b) portions of two amino acids c) an amido group d) salt like structure 21. The sum of the powers of the concentration terms that occur in the rate equation is called a) molecularity b) order c) rate d) rate constant 22. The phenomenon of Tyndall effect is not observed in a) emulsion b) colloidal solution c) true solution d) suspension 23. Catalyst used in Deacon’s method of manufacture of chlorine is

a) NO b) CuCl2 c) Fe2O3 d) Ni 24. Argyrols is a) colloidal silver www.kalvisolai.comb) colloidal animony c) colloidal gold d) milk magnesia 25. When sodium acetate is added to acetic acid the degree of ionisation of acid a) decrease b) does not change c) increase d) becomes zero 26. The reagent which R.ANNAMALAIis added first in the separation of silver from silver coin a) conc.sulphuric acid b) conc.hydrochloric acid c) con.nitric acid d) aquaregia 27. ______forms (s) oxocation a) Lanthamide b) Actinides c) Noble gases d) Alkali metals

28. ______is the oxidation state of U in UF6 a) +6 b) +4 c) +3 d) +0

2 - 29. The coordination number of Nickel in the complex ion [NiCl4] is a) +1 b) +4 c) +2 d) +6 30. Loss of a β - particle is equivalent to a) increase of one proton b) decrese of one neutron only c) both (a) and (b) d) increase of one neutron only

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HIGHER SECONDARY SECOND YEAR Chemistry SEPTEMBER -2009 1. When phenol is distilled with zinc dust, it gives a) benzalddehyde b) benzoic acid c) toluene d) benzene 2. Which one of the following ethers is used in perfumery? a) Dimethyl ether b) Diethyl ether c) Ethyl methyl ether d) Methyl phenyl ether 3. When ethyl iodide is treated with dry silver oxide it forms a) Ethyl alcohol b) Diethyl ether c) silver methoxide d) Ethyl methyl ether 4. Schiff’s reagent gives pink colour with a) acetone b) acetaldehyde c) ethanol d) ether 5. The acid that cannot be prepared by Grignard reagent is a) acetic acid b) butyric acid c) formic acid d) benzoic acid 6. The total number of atoms per unit cell in bcc is a) 1 b) 2 c) 3 d) 4 7. Which of the following processes is always non-feasible? a) Δ H > 0, Δ S > 0 b) Δ H < 0, Δ S > 0 c) Δ H > 0, Δ S < 0 d) Δ H < 0, Δ S < 0 8. The net work obtained from a system is given by a) W + P Δ V b) W - P Δ V c) - W + P Δ V a) - W - P Δ V

9. In the equilibrium N2 + 3 H2 2 NH3 The maximum yield of ammonia will be obtained with the process having www.kalvisolai.com a) low pressure and high temperature b) low pressure and low temperature c) high pressure and high temperature d) high pressure and low temperature 10. The rate constant ofR.ANNAMALAI the forward reverse reactions are 8 x 10-5 and 2 x 10-4 respectively. The value of Kc is a) 0.04 b) 0.02 c) 0.2 d) 0.4 11. de Broglie equation is mv hv h a) λ= b) λ = hmv c) d) λ= h λ= m mv 2- 12. The hybridisation in CO3 ion is a) sp2 b) sp3 c) sp d) sp3 d 13. Amongthe following which has higher electron affinity value? a) Fluorine b) chlorine c) Bromine d) Iodine 14. An element which belongs to Group 14 is soft in nature, does not react with pure water, but dissolves, but dissolves in water containing dissolved air. Then the element is a) C b) Ge c) Pb d) Ti 15. The correct outer electronic configuration of copper atom is a) 3d10 4s2 b) 3d10 4s1 c) 3d9 4s2 d) 3d5 4s2 R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 48 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. Which one of the following will not undergo diazotisation? a) m-toluidine b) Aniline c) p-aminophenol d) Benzylamine 17. Which one of the following compounds has the smel of bitter almonds? a) Aniline b) Nitromethane c) Benzene sulphonic acid d) Nitrobenzene 18. The basic strength of amine is in the order of

a) NH3 > CH3 NH2 > ( CH 3 ) 2 NH b) ( CH 3 ) 2 NH > CH3 NH2 > NH3

c) CH3 NH2 > ( CH 3 ) 2 NH > NH3 d) NH3 > ( CH 3 ) 2 NH > CH3 NH2 19. A dipeptide does not have a) two peptide units b) portions of two amino acids c) an amido group d) salt like structure 20. The important constituent of cell wall is a) liqid b) cellulose c) protein d) vitamin 21. Reactions in which the reacting molecules react in more than one way yielding different set products are called a) consecutive reactions b) parallel reactions c) opposing reactions d) chain reactions 22. Colloids are purified by a) precipitation b) coagulation c) dialysis d) filtration 23. Decomposition of hydrogen peroxide is retarded in the presence of a) alcohol b) glycerine c) manganess dioxide d) Molybdenum 24. The emulsifying agent used in O/W emulsion is a) long chain alcohol b) lamp black c) protein d) glycerol 25. When sodium acetatewww.kalvisolai.com is added to acetic acid, the degree of ionisation of acetic acid a) increase b) decreases c) does not change d) becomes zero 26. The substance used in making ruby red glass and high class pottery is a) colloidal silver R.ANNAMALAIb) purple of cassius c) ruby silver d) ruby copper 27.Alloys of lanthanidesare called a) Metalloids b) plate metals c) Actinides d) Misch metals

3+ 28. According to Fajan’s rule decrease in size of Ln ion in Ln (OH)3. a) increases the covalent character b) decreases the covaient character c) increases the basic character d) increases the ionic character

2- 29. The geometry of [Ni(CN)4] is a) tetrahedral b) suqare planar c) triangular d) octahedral 30. The most penetrating radiations are a) α rays b) β rays c) γ - rays d) all are equally penetrating

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH 2010 1. Spiting of silver can be prevented by covering the molten metal with a thin layer of a) borax b) charcoal c) sand d) silver bromide 2. Lanthanide contraction is due to a) perfect shielding of 3d electron b) imperfect shielding of 3d electron c) perfect shielding of 4f electron d) imperfect shielding of 4f electron 3. Which is used as a power source in long mission space probes? a) Uranium-235 b) Uranium -238 c) plutonium -238 d) Mish metal

4- 4. [ FeF6 ] is paramgnetic because a) F- is a weaker ligand b) F- is a stronger ligand c) F- is a fiexidentate ligand d) F- is a chelating ligand 5. Half- life period of a radioactive element is 100 seconds. Its average life period a) 100 seconds b) 50 seconds c) 200 seconds d) 144 seconds 6. Hydrolysis of an ester by dilute HCl is an example for a) zero order reaction b) first order reaction c) second order reaction d) pseudo first order reaction 7. The Tyndall effect associated with colloidal particle is due to a) presence of charge b) scattering of light c) absorotion of light d) reflection of light 8. Colloids are purified by a) precipitationwww.kalvisolai.com b) coagulation c) dialysis d) filtration 9. The colloid used for stomach disorder is a) colloidal silver b) colloidal antimony c) colloidal gold d) Milk of magnesia 10. Ostwald’s dilution law is applicable in the case of a) CH COOH b) NaCl c) NaOH d) H SO 3 R.ANNAMALAI2 4

Cu2 Cl2 / HCl 11. C6H5N2Cl X. the compound X is

a) C6 H5 NH2 b) C6 H5 NHNH2 c) C6 H5 - C6 H5 d) C6 H5 Cl 12. The basic character of amines is due to a) tertrahedral structure b) presence of nitrogen atom c) lone pair of electrons on nitrogen atom d) high electronegativity of nitrogen 13. Aniline reacts with benzoyl chloride in the presence of sodium hydroxie and gives benzanilide. This reaction is known as a) Gattermann reaction b) Sandmeyer;s reaction c) Schotten- Baumann reaction d) Gomber’g Bachmann reaction 14. The amino acid without chiral carbon is a) glycine b) alanine c) proline d) tyrosine 15. When starch is heated to 2000 C - 2500 C. the propduct is a) dextrin b) caramel c) barley sugar d) cellulose R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 50 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. The hybridistion in SF6 molecule is a) sp3 b) sp3 d c) sp3 d2 d) sp3 d3 17. Which one of the following experiments confirmed the wave nature of electrom? a) G.P Thomson’s gold foil experiment b) Black boby rediation c) photoelectric effect d) Millikan’s oil - drop experiment

18. When XA >> XB, A-B bond is a) polar covalent b) non - polar covalent c) ionic d) metallic 19. A mong the halogen acids, the weakest acid is a) HI b) HBr c) HCl d) HF 20. Which transition element shows the highest oxidation state? a) Os b) Ti c) Sc d) Zn 21. The co-ordination number of ZnS is a) 3 b) 4 c) 6 d) 8 22. Which of the following does not result in an increase in entropy? a) Rusting of iron b) conversion of ice to water c) Crystallisation of sucrose from solution d) Vaporisation of camphor 23. Thermodynamic condition for irreversible spontaneous process at constant T and P is a) Δ G < 0 b) Δ S < 0 c) Δ G > 0 d) Δ H > 0

24. In the equilibrium N2 + 3 H2 2 NH3 The maximum yield of ammonia will be obtained with the process having a) low pressure and high temperature b) low pressure and low temperature c) high temperaturewww.kalvisolai.com and high pressure d) high pressure and low temperature 25. The equilibrium constant for the reaction 2A B is 25 mol-1 dm3 at 900K. What is the equilibrium constant for the reaction B 2A in dm-3 mol at the same temperature? a) 25 b) 625R.ANNAMALAIc) 0.04 d) 0.4 26. The compound that reacts fastest with Lucas reagent is a) butan-1-ol b) butan-2-ol c) 2- methyl propan-1-ol d) 2- methyl propan-2-ol 27. Which one of the following is a simple ether?

a) CH3 - O - C2 H5 b) C2 H5 - O - C H3

c) C2 H5 - O - C2 H5 d) C3 H7 - O - C2 H5. 28. The IUPAC name of phenatole is a) ethyl phenyl ether b) methyl phenyl ether c) diethyl ether d) diphenyl ether 29. The compound uesd in the preparation of the tranquilizer sulphonal is a) acetone b) acetophenone c) isopropyl alcohol d) glycol

30. The isomerism exhibited CH3 CH2 COOH and CH3 COOCH3 is a) metamerism b) position c) chain d) functional

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HIGHER SECONDARY SECOND YEAR Chemistry

JUNE - 2010 1. Ether is formed when alkyl halide is treated with sodium alkoxide. This method is known as ______a) Hoffmann reaction b) Williamson’s synthesis c) Wurtz reaction d) Kolbe’s reaction 2. Ethers should never be evaporated to dryness because ______a) they form explosive peroxide b) they are insoluble in water c) they are inert d) they are lighter than water 3. Schiff’s reagent gives pink colour with ______a) acetone b) acetaldehyde c) ethyl alcohol d) methyl acetate 4. The acid which reduces Tollen’s reagent is ______a) acetic acid b) benzoic acid c) formic acid d) oxalic acid 5. Chloropicrin is used as ______a) explosive b) dye c) anaesthetic d) soil sterilizing 6. Total number of atoms per unit cell in bcc is ______a) 1 b) 2 c) 3 d) 4 7. Standard free energies of formation of elements are taken as ______a) Positive b) negative c) zero d) all of these 8. State of chemical equilibrium is ______a) dynamic b) stationary c) none of these d) both (a) and (b) 9. In an equilibrium reactionwww.kalvisolai.com if Δ n (g) is positive then ______

a) Kc = Kp b) Kc < Kp c) Kc > Kp Kc = 0 10. The excess energy which a molecule must possess to become active is known as ______a) Kinetic energy R.ANNAMALAIb) threshold energy c) potential energy d) activation energy 11. Dual character of an electron was explained by a) Bohr b) Heisenberg c) de Broglie d) Pauli 12. The intra molecular hydrogen bonding is present in ______a) o-nitrophenol b) m-nitrophenol c) p-nitrophenol d) p-hydroxy benzaldehyde 13. The electron affinity of an atom is ______a) directly prportional to its size b) Inversely proportional to its size c) independent of its size d) none of these 14. The compound with garlic odour is ______

a) P2O3 b) P2O5 c) H3PO3 d) H3PO4 15. The outer most electronic configuration of chromium is ______a) 3d64s0 b) 3d54s1 c) 3d44s2 d) 3d34s24p1 R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 52 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. Electrophile used in the nitration of benzene is ______a) hydronium ion b) sulphonic acid c) nitronium ion d) bromide ion 17. Primary amine act as ______a) electrophile b) Lewis base c) Lewis acid d) Free radial 18. The amino acid without chiral carbon is ______a) Glycine b) Alanine c) Proline d) Tyrosine 19. Important constituent of cell wall is ______a) lipid b) cellulose c) proteins d) vitamins 20. Which one of the following is a state function? a) q b) Δ q c) w d) Δ s 21. An emulsion is a colloidal solution of ______a) two solids b) two liquids c) two gases d) one solid and one liquid

22. The autocatalyst in the oxidation of oxalic acid by acidified KMnO4 is ______

a) K2SO4 b) MnSO4 c) KMnO4 d) CO2 23. The sky looks blue due to ______a) adsorption b) dispersion c) reflection d) scattering of light 24. The pH of a solution containing 0.1 N NaOH solution is ______a) 1 b) 10-1 c) 13 d) 10-13 25. The number of secondary alcoholic group(s) in glycerol is ______a) 1 b) 2 c) 0 d) 3 26. Which of the followingwww.kalvisolai.com has the maximum number of unpaired electrons? a) Mn2+ b) Ti3+ c) V3+ d) Fe2+ 27. Alloys of lanthanides are called ______a) Mish metals b) Metalloids c) Plate metals d) actinides 28. The isotope of whichR.ANNAMALAI element is used in nuclear fission reaction? a) Barium b) Lead c) uranium d) caesium 29. An example of a bidentate ligand is ______

- - - a) Cl b) en c) NO2 d) I 30. Radioactivity is due to ______a) stable electronic configuration b) stable nucleus c) unstable nucleus d) unstable electronic configuration

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HIGHER SECONDARY SECOND YEAR Chemistry September -2010 1. If the magnetic moment value is 5.92 BM, the number of unpaired electrons is a) 5 b) 3 c) 4 d) 6 2. ______is used in gas lamp material

a) MnO2 b) CeO2 c) N2O5 d) Fe2O3 3. ______from oxocations a) Lanthanides b) Actinides c) Noble gases d) Alkali metals

4- 4. The geometry of complex ion [ Fe (CN) 6 ] is a) tetrahedral b) square planar c) octahedral d) triangular

27 30 5. Which one of the following particles is used to bombard 13 Al to give 15 P and a neutron? a) α - particle b) Deuteron c) proton d) Neutron 6. For a reaction aA bB the rate of reaction is doubled when concentration of A is increased by four times. The rate of reaction is equal to a) K [ A ]a b) K [ A ] 1/2 c) K [ A ] 1/a d) K [ A ] 7. The migration of colloidal particles under the influence of an electric field is known as a) electro-osmosis b) hot dialysis c) electrodialysis d) electrophoresis 8. Which type of colloid is a sol? a) Solid in liquid b) Liquid in solid c) Solid in Solid d) Gas in Solid 9. In case of a physical adsorption, there is desorption when a) temperature increases b) temperature decerases c) pressure increaseswww.kalvisolai.comd) concentration increases 10. When pH of a solution is 2, the hydrogen ion concentration in moles/ litre is a) 1 x 10 -12 b) 1 x 10 -2 c) 1 x 10 -7 d) 1 x 10 -4 R.ANNAMALAI O O

11. The isomerism exhibited by CH3- N and CH2-N is O OH a) position b) chain c) functional d) tautomerism 12. The product obtained when nitrobenzene is treated with Zn/ NaOH is a) aniline b) azoxybenzene c) azobenzene d) hydrazobenzene 13. Which of the following will not undergo diazotisation? a) m- toluidine b) Aniline c) p-amino phenol d) Benzyl amine 14. A dipeptide does not have a) two peptide units b) portion of two amino acids c) an amino group d) Salt like structure 15. Glucose reacts with acetic anhydride in the presence of pyridine to give a) monoacetate b) diacetate c) penta- acetate d) no reaction 16. The bond order of oxygen molccule is a) 2.5 b) 1 c) 3 d) 2 R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 54 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

17. The hybridisation in IF7 molecule is a) sp3 d b) sp3 d2 c) sp3 d) sp3 d3

18. The bond length of Cl2 molecule is a) 0.74 A b) 1.44 A c) 1.98 A d) 2.28 A 19. The compound used as smoke screen is

a) PCl3 b) PCl5 c) PH3 d) H3PO3 20. Formation of coloured ions is possible when compounds contain a) Paired electrons b) unpaired electrons c) lone pair of electrons d) none of these 21. In a simple cubic cell, each point on a corner is shared by a) one unit cell b) two unit cell c) 8 unit cell d) 4 unit cell 22. All the naturally occurring processes proceed spontaneously in a direction which leads to a) decrease of entropy b) increase of enthalpy c) increase in free energy d) decrease of free energy

23. The entropy change involved in the process water (liq) to water ( vapour, 373 K) involving Δ H vap = 40850 J mol-1 at 373K is a) 10.952 J mol -1 K-1 b) 109.52 J mol -1 K-1 c) 100.952 J mol -1 K-1 a) 1095.2 J mol -1 K-1

24. If the equilibrium constants of the following reactions 2A Bis K1 and B 2A is K2, then

1 2 1 a) K1 = 2K2 b) K1 = c) K2 = ( K1) d) K1 = 2 K2 K2 25. When Δ ng in a homogeneous gaseous equilibrium is positive, then K a) K = K www.kalvisolai.comb) K < K c) K > K d) K = c p c p c p c p 2 26. Order of reactivity of alcohol towards sodium metal is a) primary < secondary > tertiary b) primary > secondaryR.ANNAMALAI > tertiary c) primary < secondary < tertiary d) primary > secondary < tertiary 27. According to lewis concept of acids and bases, ethers are a) neutral b) acidic c) basic d) amphoteric 28. Higher ethers can be prepared from lower members by the action of

a) conc. H2SO4 b) AgOH c) sodium alkoxide d) Grignard reagent distillation 29. Calcium acetate + Calcium benzoate ? a) Benzophenone b) Benzaldehyde c) Acetophenone d) phenyl benzoate. 30. The acid that cannot be prepared by Grignard reagent is a) acetic acid b) formic acid c) butyric acid d) benzoic acid

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HIGHER SECONDARY SECOND YEAR Chemistry

MARCH 2011 1. Compound which is used as medicine for Asthma and whooping cough is a) Benzyl acetate b) Ethyl acetate c) Benzyl benzoate d) Benzyl formate

2. Number of ether isomers possible for the molecular formula C4 H10 O is a) one b) two c) three d) four 3. When ether is exposed to air for some time, an explosive substance produced is a) peroxide b) Oxide c) TNT d) Superoxide 4. A cyanohydrin of a compound X on hydrolysis giyes lactic acid. X is

a) HCHO b) C3 CHO c) ( CH3 )2 CO d) C6H5 CH2 CHO 5. The compound found in some stony deposit in kidneys is a) potassium oxalate b) oxalic acid c) potassium succinate d) calcium oxalate 6. The Bragg’s equation is a) λ = 2d sin θ b) nd = 2λ sin θ c) 2λ = nd sin θ d) nλ = 2d sin θ 7. According to Trouton’s rule, the value of change in entropy of vaporisation is a) 21 cal. deg-1 mole-1 b) 12 cal. deg-1 mole-1 c) 21 K. cal. deg. mole-1 d) 12 K cal. deg.mole-1 8. In Which of the following, the process is always non feasible a) Δ H > 0, Δ S > 0 b) Δ H < 0, Δ S > 0 c) Δ H > 0, Δ S < 0 d) Δ H < 0, Δ S < 0 9. In the manufacture of ammonia by Haber’s process the maximum yield of ammomia will be obtained with the process havingwww.kalvisolai.com a) low pressure and high temperature b) low pressure and low temperature c) high pressure and high temperature d) high pressure and low temperature 10. The relationship between K and K for the equilibrium R.ANNAMALAIp c 2 H2O (g) + 2 Cl2 (g) 4 HCl (g) +O2(g) is 2 1 -2 a) Kp = Kc b) Kp = Kc (RT) c) Kp = Kc (RT) d) Kp = Kc (RT) 11. The intramolecular hydrogen bonding is present in a) o-nitrophenol b) m-nitrophenol c) p-nitrophenol d) none of these 12. The momentum of a particle which has de- Broglie wavelength of 1Å (h = 6.626x10 -34 kgm2 s-1 ) is a) 6.63 x 10-23 kg ms-1 b) 6.63 x 10-24 kg ms-1 c) 6.63 x 10-34 kg ms-1 d) 6.63 x 1034 kg ms-1 13. Effective nuclear charge can be calculated using the formula a) Z * = Z - S b) Z * = Z + S c) Z * = S - Z d) Z = Z * - S 14. Inert gas used in beacon lights for safety of air navigation is a) Helium b) Argon c) Neon d) Xenon 15. Which one of the following will have maximum magnetic moment? a) 3d2 b) 3d6 c) 3d7 d) 3d9 R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 56 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. Nitromethane condenses with acetaldehyde to give a) nitropropane b) 1-nitro-2- propanol c) 2- nitro -1-propanol d) 3- nitropropanol 17. Which one of the following is a secondary amine? a) Aniline b) Diphenyl amine c) Secondary butyl amine d) tertiary butyl amine 18. When aqueous solution of benzene diazonium chloride is boiled, the product formed is

a) Benzyl alcohol b) Benzene +N2 c) Phenol d) phenyl hydroxyl amine 19. The amino acid without chiral carbon is a) Glyine b) Alanine c) proline d) Tyrosine 20. Invert sugar is a mixture of equal amount of a) D ( + ) glucose and sucrose b) D ( - ) fructose and sucrose c) D ( + ) glucose and D ( - ) fructose d) sucrose and maltose 21. The t1/2 of first order reaction is 100 minutes. the rate constant of the reaction is a) 6.93 x 103 min-1 b) 0.693 x 10-3 min-1 c) 6.93 x 10 -3 min-1 d) 69.3 x 10-2 min-1 22. Colloidal medicines are more effective because a) they are clean b) they are easy to prepare c) the germs move towards them d) they are easily assimilated and adsorbed 23. The decomposition of hydrogen peroxide in the presence of colloidal platinum is a/an a) positive catalysis b) negative catalysis c) auto- catalysis d) induced catalysis 24. For chemisorption which is wrong? a) It is irreversiblewww.kalvisolai.comb) It requires activation energy c) It forms multilayers on adsorbate d) Surface compounds are formed 25. For the titration between oxalic acid and sodium hydroxide, the indicator used is a) potassium permanganate b) phenolphthalein c) litmus R.ANNAMALAId) methyl orange 26. Which compound is formed when excess of KCN is added to an aqueous solution of copper sulphate?

a) Cu (CN)2 b) K2 [Cu (CN)6] c) K [ Cu (CN)2] d) Cu2 (CN)2 + (CN)2- 27. Alloys of Lanthanides are called as a) Mish metals b) Metalloids c) plate metal d) actinides 28. Lanthanide contraction due to a) perfect shielding of 4f electrons b) imperfect shielding of 4f electrons c) perfect shielding of 3d electrons d) imperfect shielding of 3d electrons 29. An example of a chelating ligand is a) nitro b) chloro c) bromo d) en

235 139 94 30. 92U nucleus absorbs a neutron and disintegrates into 54 Xe , 38 Sr and X. What is X? a) 3 neutrons b) 2 neutrons c) α-particle d) β-particle

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HIGHER SECONDARY SECOND YEAR Chemistry

1. Rutile is JUNE - 2011

a) TiO2 b) Cu2O c) MoS2 d) Ru 2. Free energy (G) and the free energy change (ΔG) correspond to the a) System only b) Surrounding only c) System and surrounding d) all of these

o 3. The entroy change ΔS(fusion) = involved in the process of H2O(S) H2O(l) at 0 C and 1 atm -1 pressure involving ΔH(fusion) = 6008 Jmol is a) 22.007 Jmol-1 K-1 b) 22.007 Jmol K-1 c) 220.07 Jmol-1 K-1 d) 2.2007 Jmol-1 K-1 4. When Δn(g) in a homogeneous gases equilibrium is positive, then

a) Kp = Kc b) Kp < Kc c) Kp > Kc d) Kp = Kc / 2 5. Forward reaction takes place, when?

a) Q < Kc b) Q > Kc c) Q = Kc d) Kc = 1/Q 6. Which of the following compounds has the smell of better almonds? a) Aniline b) Nitromethane c) Benzene sulphonic acid d) Nitrobenzene 7. Nitro-acinitro tautomerism is exhibited by a) nitronmethane b) nitro benzene c) chloropicrin d) o-toluidine

8. Use of chloropicrin (CCl3NO2) is as a) explosivewww.kalvisolai.com b) dye c) anaesthetic d) sterilizing agent 9. ______is involved in the process of blood coagulation a) Fats and oils b) Cephaalin c) Glycolipids d) Lecithins 10. Mixture of equal molecules of D (+) glucose D (-) fructose is called as a) Fruit sugar R.ANNAMALAIb) Invert sugar c) Cane sugar d) Non-sugar 11. Bordeaux mixture contains

a) AgNO3 + HNO3 b) ZnSO4 + H2SO4 c) CuSO4 + Ca(OH)2 d) KMnO4 + HCl 12. The isotope used as a power source in long mission space probes is a) U-235 b) Pu-235 c) Pu-238 d) U-238 13. Cera is used in a) toys b) tracer bullets c) gas lamp meterial d) none of these

2- 14. The coordination number of Ni (II) In [Ni (CN)4] is a) 2 b) 4 c) 5 d) 6

8 8 15. Find out the missing in a reaction 5Be 4Be +? a) α - particle b) β - particle c) electron capture d) positron 16. When phenol is distilled with zinc dust, It gives a) benzaldehyde b) benzoic acid c) toluene d) benzene R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 58 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

17. Williamson’s synthesis is an examble of a) nucleophilic addition b) electrophilic addition c) electrophilic substitution d) nucleophilic substitution 18. Diethyl ether behaves as a a) Lewis acid b) Lewis base c) Neutral compound d) Bronsted acid 19. Aldol is a) 2 - hydroxy butanol b) 3 - hydroxy butanol c) 3 - hydroxy butanal d) 2 - hydroxy butanal

20. The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is a) Metamerism b) Position c) Chain d) Functional 21. In the energy of an electron in the second Bohr orbit of H-atom is - E, What is the energy of the electron in the Bohr’s first orbit? a) 2E b) -4E c) -2E d) 4E

22. The Hybridisation involved in XeF6 is a) Sp3d3 b) Sp3d2 c) Sp3d d) Sp3 23. Among the following which has the maximun ionisation energy a) Alkali metals b) Alkaline earth metals c) Halogens d) Noble gases 24. The lightest gas which is non-inflammable is

a) He b) H2 c) N2 d) Ar 25. Silver salt used in photography is a) AgCl b) AgNO c) AgF d) AgBr www.kalvisolai.com3 5 -1 26. For a reaction Ea = O and k = 4.2 x 10 sec at 300 k value of k at 310 K will be a) 4.2 x 105 sec-1 b) 8.4 x 105 sec-1 c) 8.4 x 105 sec d) unpredictable 27. An emulsion is a colloidialR.ANNAMALAI solution of a) two solids b) two liquids c) two gases d) one solid and one liquid 28. In case of physical adsorption, there is desorption when a) temperature increases b) temperature decreases c) pressure increases d) concentration increases 29. The oxidation of sodium sulphite by air is retarded by

a) MnO2 b) H2S c) Alcohol d) AS2O3 30. The pH of a solution containing 0.1 N NaOH solution is a) 1 b) 10-1 c) 13 d) 10-13

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HIGHER SECONDARY SECOND YEAR Chemistry

October - 2011 1. Which of the following pairs have almost equal radii? a) Mo, W b) Y, La c) Zr, Hf d) Nb, Ta 2. The most common oxidation state of lanthanide is a) +2 b) +1 c) +3 d) +4 3. The fuel used in nuclear power plant is a) Copper b) Lead c) Uranium d) Radium

2- 4. The co-ordination number of Ni II in (Ni (Cl)4] is a) 2 b) 4 c) 5 d) 6 5. Loss of a β- partieie is equivalent to a) Increase of one proton only b) decrease of one neutron only c) both (a) & (b) d) none of these 6. If the activation energy is high, then the rate of the reaction is a) high b) moderate c) low d) cannot be predicted 7. The migration of colloidal particles under the influence of an electric field is known as a) electro osmosis b) electrolysis c) electrodialysis d) electrophoresis 8. For chemisorption, which is wrong? a) It is irreversible b) It requires activation energy c) It forms multimolecularwww.kalvisolai.com layers on absorbate d) Surface compounds are formed

9. The catalyst used for the decomposition of KClO3 is

a) MnO2 b) Cl2 c) V2O5 d) Pt 10. When one coulomb of electricity is passed through an electrolytic solution mass deposited on the electrode is equal toR.ANNAMALAI a) equivalent weight b) molecular weight c) electrochemical equivalent d) one gram

11. The isomerism exhibited by CH3 - CH2 NO2 and CH3 - O - N = O is a) position b) chain c) functional d) tautomerism

12. When nitromethane is reduced with Zn dust + NH4Cl we get

a) CH3NH2 b) C2H5NH2 c) CH3NHOH d) C2H5COOH 13. Electrophile used in the nitration of benzene is a) hydronium ion b) sulphonic acid c) nitronium ion d) bromide ion 14. The reducing sugar of the following is a) sucrose b) cellulose c) starch d) glucose 15. The amino acid without chiral carbon is a) Glycine b) Alanine c) Proline d) Tyrosine

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16. The bond order of oxygen molecule is a) 2.5 b) 1 c) 3 d) 2 17. Molecular orbital with the least energy is a) 1s b) * 1s c) 2py d) * py 18. Among the following which has the maximum Ionisatlon energy? a) Alkali metals b) Alkaline earth metals c) Halogens d) Noble gases

19. The shape of PCl5 is a) Pyramidal b) Trigonal bipyramidal c) Linear d) Tetrahedral 20. The general outer electronic configuration of d-block elements is? a) (n-1)d1-10ns0-2 b) (n-1)d1-5ns2 c) (n-1)d0ns1 d) (n-1)d1-10ns1-2 21. The total number of atoms per unit cell in BCC is a) 1 b) 2 c) 3 d) 4 22. The network obtained from a system is given by a) w - P Δ V b) w + PΔ V c) - w + PΔ V d) -w-PΔ V 23. Entropy is a ______function a) state b) path c) exact d) inexact 24. The fraction of total moles of reactant dissociated is called a) dissociation equilibrium b) degree of association c) degree of dissociation d) dissociation constant 25. Two moles of ammonia gas arc Introduced into a previously evacuated 1.0 dm3vessel in which it partialy dissociateswww.kalvisolai.com at high temperature. At equilibrium 1.0 mole of ammonia remains. The equilibrium constant Kc for the dissociation is a) 27/16 (mole dm-3)2 b) 27/8 (mol dm-3)2 c) 27/4 (mole dm-3)R.ANNAMALAI2 d) none of these 26. Order of reactivity of alcohol towards sodium metal is a) primary < secondary > tertiary b) primary > secondary > tertiary c) primary < secondary < tertiary d) primary > secondary < tertiary 27. Diethyl ether can be decomposed with

a) HI b) KMnO4 c) NaOH d) H2O

28. Which of the following produces ether, when heated with cone. H2SO4 at 413K? a) Organic acid b) Aldehyde c) Alcohol d) Ketone 29. Methyl ketones are characterised by a) fehling’s solution b) Iodoform test c) Schiffs test d) Tollen’s reagent 30. The acid which reduces Tollen’s reagent is a) acetic acid b) benzoic add c) formic arid d) oxalic acid

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HIGHER SECONDARY SECOND YEAR Chemistry

March - 2012 1. The compound that undergoes bromination easily is a) benzoic acid b) benzene c) phenol d) toluene 2. Diethyl ether can be decomposed with

a) HI b) KMnO4 c) NaOH d) H2O

3. How many alcohol isomers are possible for the formula C4H10O? a) 4 b) 2 c) 3 d) 7 4. Schiff’s reagent gives pink colour with a) acetone b) acetaldehyde c) ethyl alcohol d) methyl acetate 5. Which of the following compounds is optically active?

a) CH3CH2COOH b) HOOC - CH2 - COOH

c) CH3CH(OH)COOH d) Cl2CHCOOH 6. The number of close neighbours in a body centred cubic lattice of identical spheres is a) 6 b) 4 c) 12 d) 8 7. Which of the following processes is always non - feasible? a) Δ H > 0, Δ S > 0 b) Δ H < 0, Δ S > 0 c) Δ H > 0, Δ S < 0 d) Δ H < 0, Δ S < 0 8. In SI unit 1 eu is a) 41.84 EU b) 4.184 EU c) 418.4 EU d) 4184 EU 9. If the equilibrium constants of the following reactions 2A B is K and B 2A are K and www.kalvisolai.com1 1 K2 respectively then

1 2 1 a) K1 = 2K2 b) K1 = c) K2 = ( K1) d) K1 = 2 K2 K2 -2 10. The equilibrium constantR.ANNAMALAI Kc for A (g) B (g) is 2.5 x 10 . The rate constant of forward reaction is 0.05 sec-1. Therefore the rare constant of the reverse reaction is a) 2 seconds-1 b) 0.2 second c) 2 Minutes d) 0.2 minute 11. de Broglie equation is a) λ = mv / h b) λ = hmv c) λ = hv / m d) λ = h / mv

+ 12. The hybridisation in NH 4 ion is a) sp b) sp2 c) sp3 d) sp3d 13. Among the following which has higher electron affinity value? a) Fluorine b) Chlorine c) Bromine d) Iodine 14. The compound with garlic odour is

a) P2O3 b) P2O5 c) H3PO3 d) H3PO4 15. Paramagnetism is the property of a) paired electrons b) completely filled electronic subshells c) unpaired electrons d) completely vacant electronic subshells

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H3PO2 16. C6H5N2Cl X + N2 + HCl. The compound X is Cu+

a) C6H5Cl b) C6H5NHNH2 c) C6H6 d) C6H5NO2 17. Which of the following will not undergo diazotisation? a) m - toluidine b) aniline c) p - aminophenol d) benzyl amine 18. Which of following componds is called oil of mirbane? a) Aniline b) Nitromethane c) Benzene diazonium chloride d) Nitrobenzene 19. The reducing sugar among the following is a) sucrose b) cellulose c) starch d) glucose 20. The amino acid without chiral carbon is a) glycine b) alanine c) proline d) tyrosine 21. The term A in arrhenius equation is called as a) probability factor b) activation energy c) collision factor d) frequency factor 22. The Tyndall’s effect associated with colloidal particles is due to a) presence of charge b) scattering of light c) absorption of light d) reflection of light 23. Colloids are purified by a) precipitation b) coagulation c) dialysis d) filtration 24. Medicine used as an eye lotion is a) silver sol www.kalvisolai.comb) colloidal gold c) colloidal antimony d) milk of magnesia 25. Ostwald’s dilution law is applicable in the case of the solution of

a) CH3COOH b) NaCl c) NaOH d) H2SO4 26. Which of the followingR.ANNAMALAI ions will give colourless aqeous solution? a) Ni2+ b) Fe2+ c) Cu2+ d) Cu+ 27. ______form oxocations. a) Lanthanides b) Actinides c) Noble gases d) Alkali metals 28. Fuel used in nuclear power plants is a) U 235 b) Pu 235 c) Pu 238 d) U 238

2- 29. The geometry of [Ni (CN)4] is a) Tetrahedral b) Square planar c) Triangular d) Octahedral

198 30. Half - life period of 79Au nucleus is 150 days. The average life is a) 216 days b) 21.6 days c) 261 days d) 26.1 days

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2012 1. An example for Frenkel defect is a) NaCl b) AgBr c) CsCl d) FeS 2. In which of the following, process in always non-feasible? a) Δ H > 0, Δ S > 0 b) Δ H < O, ΔS < 0 c) Δ H > 0, Δ S < 0 d) Δ H < 0, Δ S < 0 3. A peocess accompanied by increase in free energy tends to be a) reversible process b) irreversible process c) non-spontaneous process d) spontaneous process

4. If the equilibrium constants of the reactions 2HI H2 + I2 and H2 + I2 2HI are K1 and K2 respectively, then

2 2 a) K1=2K2 b) K1= 1/K2 c) K2 = ( K2) d) K1= 1/K2 5. Two moles of ammonia gas are introduced into a previously evacuated 1.0 dm3 vessel in which it partially dissociates at high temperature. At equilibrium 1.0 mole of ammonia remains. The equilibrium

constant Kc for this dissociation is 27 27 a) (mole dm-3)2 b) (mole dm-3)2 16 8 27 c) (mole dm-3)2 d) None of these 4

6. When nitromethane is reduced with Zine dust + NH4Cl, it forms is

a) CH3NH2 b) C2H5NH2 c) CH3NHOH d) C2H5COOH 7. When aquequs solution of benzene diazonium chloride is boiled, the product formed is a) Benzyl alcohol www.kalvisolai.comb) Phenol c) Benzene + N2 d) Phenyl hydroxylamine 8. The organic compound that undergoes carbylamine reaction is

+ - a) (C2H5)2NH b) C2H5NH2 c) (C2H5)3N d) (C2H5)4N 1 pyridine 9. Glucose + accetic anhydrideR.ANNAMALAI a) di acetate b) tetra acetate c) penta acetane d) hexa acetate 10. Which of the following is not true for amino acid? a) Amino acid forms zwitter ion b) Amino acid has isoelectric poit c) Amino acid has dual behaviour d) Amino acid is insoluble in NaOH solution 11. Which of the following compounds is not coloured?

a) Na2CuCl4 b) Na2CdI4 c) K4[Fe(CN)6] d) K3[Fe(CN)6] 12. ______form oxocations a) Lanthanides b) Actinides c) Noble gases d) Alkali metals 13. The radioactive lanthanide is a) Lanthanum b) Promethium c) Gadolinium d) Terbium 14. The unit of paramagnetic moment is a) debye b) k Joules c) BM d) ergs

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15. After 24 hours only 0.125 g out of the initial quantity of 1 g of a radioisotope remains. Then its half - life period is a) 3 hours b) 6 hours c) 8 hours d) 12 hourse 16. Glycerol is used a) as a sweetening agent b) in the manufacture of good quality soap c) in the manufacture of nitroglycerine d) all of these 17. Diethyl ether can be decomposed with

a) HI b) KMn04 c) NaOH d) H2O 18. The solvent used for the Grignard reagent is a) ethyl alcohol b) diethyl ether c) acetone d) benzene 19. The compound which does not reduce Fehling’s solution is a) formaldehyde b) acetaldehyde c) benzaldehyde d) propionaldehyde 20. Among the following the strongest acid is

a) ClCH2COOH b) Cl3C-COOH c) CH3COOH d) Cl2CH-COOH 21. The bond order of nitrogen molecule is a) 1 b) 2 c) 2.5 d) 3

22. The type of hybridisation in PCl5 molecule is a) sp3d2 b) sp3d c) sp3 d) sp2 23. Among the following, which has the maximum ionisation energy? a) Alkali metals b) Noble gases c) Alkaline earth metals d) Halogens

24. The shape of XeF4 is a) Tetrahedralwww.kalvisolai.com b) octahedral c) square planar d) pyramidal 25. Which transition element shows the highest oxidation state? a) Sc b) Ti c) Os d) Zn 26. Decomposition of nitrogenR.ANNAMALAI pentoxide in CCl is a 4 a) zero order reaction b) first order reaction c) pseudo-first order reaction d) fractional order reaction 27. For chemisorption which of the following is wrong? a) Irreversible b) It requires activation energy c) It forms multimolecular layers on adsorbate d) Surface compounds are formed 28. The phenomenon of Tyndall’s effect is not observed in a) emulsion b) colloidal solution c) true solution d) none of these 29. The rate of decomposition of hydrogen peroxide decreases in presence of a) Platinum b) Iron c) Mn02 d) Glycerine 30. The pH of 0.1 N NaOH solution is a) 1 b) 10-1 c) 13 d) 10-13

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HIGHER SECONDARY SECOND YEAR Chemistry OCTOBER - 2012 1. The crystal lattice with coordination number four is a) CsCl b) ZnO c) BN d) NaCl 2. All the naturally occurring processes proceed spontaneously in a direction which lead to a) decrease in entopy b) increase in enthaly c) increase in free energy d) decrease in free energy

-1 3. The entropy change for the following process possessing Δ H (transition) as 2090 J.mol 1 mol Sn (α, 13oC) 1 mole Sn (β, 13oC) a) 22.007 J.mol-1K-1 b) 7.307 JK-1mol-1 c) 0.314 J.molK-1 d) 109.52 J.mol-1K-1 4. In an equilibrium reaction, when Q

a) PCl5(g) PCl3(g) + I2(g) b) H2(g) + I2(g) 2HI(g)

c) N2(g) + 3H2(g) 2NH3(g) d) CO(g) + H2O(g) CO2(g) + H2(g) 6. Nitrobenzene on electrolytic reduction in cone. Sulphuric acid, the intermediate formed is

a) C6H5NH - NHC6H5 b) C6H5NHOH c) C6H5 - N = N - C6H5 d) C6H5HSO4 7. Which one of the followingwww.kalvisolai.com is the most basic? a) Ammonia b) Methylamine c) Dimethylamine d) Aniline 8. The compound which does not undergo diazotisation reaction is a) m-toluidine R.ANNAMALAIb) benzylamine c) aniline d) p-aminophenol 9. The building block of proterins are a) α - hydroxy acids b) α - amino acids c) β - hydroxy acids d) β - amino acids 10. An example for reducing disaccharide is a) Glucose b) Fructose c) Sucrose d) Lactose 11. The most malleable and ducitle of all metals is a) silver b) gold c) copper d) zinc 12. The maximum oxidation state exhibited by lanthanide is a) +1 b) +3 c) +2 d) +4 13. Which is used in Gas lamp materials? a) Ceria b) Thoria c) Mish metal d) Both (a) and (b)

14. The Type of isomerism found in the complexes [Co(NO2) (NH3)5] SO4 and [Co(SO4) (NH3)5]NO2 is a) Hydrate isomerism b) Coordination isomerism c) Linkage isomerism d) lonisation isomerism

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15. After 24 Hours, only 0.125g out of the initial quantity of 1 g of a radioisotope remains behind. Then its half-life perod is a) 0.8 hours b) 8 hours c) 100 hours d) 80 hours 16. Order at reactivity of Alcohol towards sodium metal is a) primary < secondary > tertiary b) primary > secondary < tertiary c) primary > secondary > teriary d) primary < secondary < tertiary 17. When diethyl ether reacts with chlorine in presence of sunlight it gives a) chlorodiethyl ether b) dichlorodiethyl ether c) perchlorodiethyl ether d) both (a) and (b) 18. Intermolecular hydrogen bonds are not present in

a) CH3COOH b) C2H5OC2H5 c) CH3CH2OH d) C2H5NH2

Conc H2SO4 19. 3CH3COCH3 the product is a) Mesitylene b) Mesityl oxide c) Phorone d) Paraldehyde 20. The acid that cannot be prepared by Grignard reagent is a) Acetic acid b) Formic acid c) Butyric acid d) Benzoic Acid 21. De Broglie equation is a) λ = mv / h b) λ = hmv c) λ = hv / m d) λ = h / mv

- 22. The hybridisation in ICI 4 ion is a) sp3 b) sp3d c) sp3d2 d) sp3d3 23. Noble gases have ______electron affinity. a) high b) low c) zero d) very low 24. Which of the followingwww.kalvisolai.com is the second most abundant element in earth’s crust? a) Carbon b) Silicon c) Germanium d) Tin 25. When excess of KCN is added to an equeous solution of copper sulphate, it gives a) Cu(CN) b) K [Cu(CN) ] c) K[Cu(CN) ] d) Cu (CN) + (CN) 2 R.ANNAMALAI2 6 2 2 2 2 26. Arrhenius equation is a) K = A.e-I/RT b) K = A.e-RT/Ea c) K = A.e-Ea/RT d) K = A.eEa/RT 27. Fog is a colloidal solution of a) gas in liquid b) liquid in gas c) gas in solid d) solid in gas 28. The Iron catalyst used in the synthesis of ammonia in Haber’s process is poisoned by

a) AS2O3 b) V2O5 c) H2S d) Glycerine 29. The migration of colloidal particles under the influence of an electric field known as a) Electro - osmosis b) Brownian movement c) Electro - dialysis d) Cataphoresis 30. When pH of a solution is 2, the hydrogen ion concentration in moles. Lit-1 is a) 1 x 10-12 b) 1 x 10-2 c) 1 x 10-7 d) 1 x 10-4

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HIGHER SECONDARY SECOND YEAR Chemistry March - 2013 1...... form oxocations. a) Lanthanides b) Actinides c) Noble gases d) Alkali metals 2. The metals present in Nichrome alloy. a) Cr, Ni, Fe b) Cr, Co, Ni c) Cr, Fe d) Cr, Fe, Cu

3. 2H2O(g) + 2Cl2(g) 4 HCl(g) + O2(g) The relationship between KP and KC for the equilibrium is. 2 1 -2 a) KP = KC b) KP = KC(RT) c) KP = KC(RT) d) KP = KC(RT) 4. The aminoacid without Chiral carbon is. a) Glycine b) Alanine c) Proline d) Tyrosine 5. Silica gel is utilised for the ...... of the number of gases. a) adsorption b) absorption c) desorption d) all of these

235 139 94 6. 92U nucleus absorbs a neutron and disintegrates into 54Xe , 38Sr and X. What is X? a) 3 neutrons b) 2 neutrons c) α - particle d) β - particle 7. Ethylene diamine is converted to ethylene glycol using.

a) Na2CO3 solution b) Nitrous acid c) NaHCO3 solution d) Baeyer’s reagent

8. In nitroalkanes - NO2 group is converted to - NH2 group by using the reagent.

a) Sn/HCl b) Zn dust c) Zn/NH4Cl d) Zn/NaOH 9. Strong mineral acids ...... the ethereal oxygen forming oxonium salts. a) electronate b) protonate c) deprotonate d) dehydrate 10. When pH of a solution is 2, the hydrogen ion concentration in moles litre-1 will be. a) 1 x 10-12 www.kalvisolai.comb) 1 x 10-4 c) 1 x 10-7 d) 1 x 10-2 11. Paramagnetism is the property of. a) paired electrons b) completely filled electronic sub-shells c) unpaired electonsR.ANNAMALAId) completely vacant electronic sub-shells 12. In the manufacture of ammonia by Haber’s process, the maximum yield of ammonia will be obtained with the process having. a) low pressure and high temperature b) low pressure and low temperature c) high pressure and high temperature d) high pressure and low temperature 13. The noble gases are unreactive because they. a) have same number of electrons b) have an atomicity c) are gases with low density d) have stable electronic configuration 14. Emulsifying agent is used for. a) precipitation of an emulsion b) denaturation of an emulsion c) stabilization of an emulsion d) oxidation of an emulsion 4 - 15. [FeF6] is paramagnetic because. a) F - is a weaker ligand b) F - is a stronger ligand c) F - is a flexidinate ligand d) F - is a chelating ligand

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16. The total number of atoms per unit cell in fcc is. a) 1 b) 2 c) 3 d) 4 17. Among the following the strongest acid is.

a) CH3COOH b) HCOOH

c) ClCH2COOH d) CH3CH2COOH

18. The hybridisation in PCl5 molecule is. a) sp3 b) sp3d2 c) sp3d d) sp2 19. Conversion of benzene diazonium chloride to chlorobenzene is a) Sandmeyer’s reaction b) Stephen’s reaction c) Gomberg reaction d) Schotten - Baumann reaction 20. Which of the following does not result in an increase in entropy? a) Rusting of iron b) Conversion of ice to water c) Crystallisation of sucrose from solution d) Sublimation of camphor 21. The organic compound that undergoes carbylamine reaction is.

+ - a) (C2H5)2NH b) C2H5NH2 c) (C2H5)3N d) (C2H5)4N I 22. For a reaction Ea = 0 and K=4.2 x 105 sec-1 at 300 K, the value of K at 310 K will be. a) 4.2x105 sec-1 b) 8.4x105 sec-1 c) 8.4x10-5 sec-1 d) 4.2x10-5 sec-1 23. Maximun oxidation state exhibited by lanthanides is. a) +1 b) +2 c) +3 d) +4 24. On moving down a group, the radius of an ion. a) decreases b) increases c) first increases andwww.kalvisolai.com then decreases d) remains constant 25. Thermodynamic condition for irreversible spontaneous process at constant T and P is. a) Δ G < 0 b) Δ G = 0 c) Δ G > 0 d) a and c 26. Which one of the followingR.ANNAMALAI is a simple ether? a) CH3 - O - C2H5 b) C6H5 - O - CH3

c) C2H5 - O - C2H5 d) C3H7 - O - C2H5 27. Dual character of an electon was explained by. a) Bohr b) Heisenberg c) De Broglie d) Pauli 28. The compound that does not undergo Cannizaro reaction is. a) formaldehyde b) benzaldehyde c) acetaldehyde d) trimethyl acetaldehyde 29. The phenomenon of Tyndall’s effect is not observed in. a) emulsion b) colloidal solution c) true solution d) gel 30. The reducing sugar is. a) Sucrose b) Cellulose c) Starch d) Glucose

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2013 1. Chloropicrin is

a) CCl3CHO b) CCl3NO2 c) CHCl3 d) CH3NO2 2. The rate constant for a first order reaction is 1.54 x 10-3 sec-1. Its half life period is. a) 540 seconds b) 450 seconds c) 45 seconds d) 54 seconds 3...... is used in gas lamp material.

a) MnO2 b) CeO2 c) N2O5 d) Fe2O3 4. For an isothermal process, the entropy change of the universe during a reversible process is. a) Zero b) More c) Less d) None of the above

NaNO2 / HCl 5. C H NH2 X. Identify X. 6 5 273 K - 278K

a) C6 H5 Cl b) C6 H5 NHOH c) C6 H5 N2 Cl d) C6 H5 OH 6. Ruby glass is a colloidal solution of. a) Solid - sol b) Gel c) Emulsion d) sol 7. Paramagnetic moment is expressed in. a) Debye Unit b) Kilojoules c) BM D) ergs 8. β - particle is represented as.

0 0 1 4 a) +1e b) -1e c) 1H d) 2He 9. The compound used in the preparation of the tranquilizer, sulphonal is. a) acetone www.kalvisolai.comb) acetophenone c) Isopropyl alcohol d) glycol 10. The unit of electron affinity is. a) MeV b) JK -1 c) eV d) KJ mol -1

o -1 2 -1 11. The equivalent conductivity of CH3COOH at 25 C is 80 ohm cm eq and at infinite dilution 400 -1 2 -1 ohm cm eq . TheR.ANNAMALAI degree of dissociation of CH3COOH is ...... a) 1 b) 0.2 c) 0.1 d) 0.3 12. The number of secondary alcoholic group in glycerol is. a) 1 b) 2 c) 3 d) 0

13. IUPAC name of this compound CH2O - CH - CH3

CH3 a) 1 - Methoxy propane b) Methyl isopropyl ether c) Isopropyl methyl ether d) 2 - Methoxy propane 14. State of Chemical equilibrium is. a) dynamic b) stationary c) none d) both (a and b) 15. The phenomenon of Tyndall’s effect is not observed in. a) Emulsion b) Colloidal solution c) True solution d) Gel 16. Glucose is not oxidised to gluconic acid by.

a) Br2/H2O b) Fehling’s solution c) Tollens Reagent d) Conc. HNO3 R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 70 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT 17. Which of the following compounds will not give positive chromyl chloride test?

a) CuCl2 b) HgCl2 c) ZnCl2 d) C6H5Cl 18. Δ H and Δ S respectively are. For the reaction 2Cl(g) Cl2(g) the signs of a) +, - b) +, + c) -, - d) -, + 19. Aspirin is. a) Salicylic acid b) Acetyl salicylic acid c) Salicylaldehyde d) Methyl Salicylate 20. For chemisorption, which is wrong? a) Irreversible b) It requires activation energy c) It forms multimolecular layers on adsorbate d) Surface compounds are formed

21. In the formation of HI from H2 and I2 , Kp = Kc because.

a) Δ ng = 2 b) Δ ng = 1 c) Δ ng = 0 d) Δ ng = -1 22. Paramagnetism is the property of a) Paired electrons b) Completely filled electronic subshells c) unpaired electrons d) Completely vacent electronic sub shells 23. The bond order of nitrogen molecule is a) 1 b) 2 c) 3 d) 4 24. Radioactive element of lanthanide is. a) Thorium b) Lanthanum c) Uranium d) Promethium 25. Semiconductors which exhibit conductivity due to the flow of excess negative electrons are called. a) Super conductors b) n - type semiconductors c) p - type semiconductorswww.kalvisolai.com d) Insulators 26...... occur in the white matter of the brain and of all nervous tissue. a) Lacithin b) Cephalin c) Galactolipids d) Amino acid 27. The organic compoundR.ANNAMALAI that undergoes carbylamine reaction is. + - a) (C2H5)2NH b) C2H5NH2 c) (C2H5)3N d) (C2H5)4N I 28. The intramolecular hydrogen bonding is present in. a) o - nitrophenol b) m - nitrophenol c) p - nitrophenol d) None of the above 29. Intermolecular hydrogen bonds are not present in.

a) CH3COOH b) C2H5OC2H5 c) CH3CH2OH d) C2H5NH2 30. The compound with garlic taste is.

a) H3PO4 b) H3PO3 c) P2O3 d) P2O5

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 71 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT HIGHER SECONDARY SECOND YEAR Chemistry

October - 2013 1. When ether is exposed to air for sometime an explosive substance produced is a) Peroxide b) Oxide c) TNT d) Superoxide 2. Among the halogen acids, the weakest acid is a) HF b) HCl c) HBr d) HI

3. In a reversible reaction 2HI H2 + I2 Kp is

a) greater than Kc b) less than Kc c) equal to Kc d) zero 4. Change in Gibbs free energy is given by a) Δ G = Δ H + T Δ S b) Δ G = Δ H -T Δ S c) Δ G = Δ H x T Δ S d) Δ G = Δ H / T Δ S 5. The compound that does not undergo Cannizaro reaction is a) Formaldehyde b) Acetaldehyde c) Benzaldehyde d) Trimethyl acetaldehyde 6. An example of ambidentate Ligand is - - a) NH3 b) H2O c) NO 2 d) I

NaNO2 / HCl 7. C H NH2 X. X is 6 5 0oC

a) C6 H5 Cl b) C6 H5 NHOH c) C6 H5 N2 Cl d) C6 H5OH 5 -1 8. For a reaction Ea = 0 and K = 4.2 x 10 sec at 300 K, the value of K at 310 K will be a) 4.2 x 105 sec-1 www.kalvisolai.comb) 8.4 x 105 sec-1 c) 7.4 x 105 sec-1 d) 4.2 x 10-5 sec-1 9. Which element in Lanthanide is radioactive? a) Cerium b)R.ANNAMALAI Promethium c) Holmium d) Lutetium 10. Among the following which has higher electronegativity value? a) Fluorine b) Chlorine c) Bromine d) Iodine

11. In the oxidation of SO2 in contact process the catalytic poison is

a) As2O3 b) V2O5 c) Fe2O3 d) CuCl2 12. Which of the following compound doesn’t show tautomerism? a) Nitro benzene b) Nitromethane c) Nitro ethane d) 2-nitropropane 13. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to. a) equivalent weight b) molecular weight c) electrochemical equivalent d) one gram

14. The hybridisation in SF6 molecule a) sp3 b) sp3d2 c) sp3d d) sp3d3

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 72 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT 15. Electrophile used in nitration of benzene is a) Hydronium ion b) Sulphonic ion c) Nitronium ion d) Bromide ion 16. IUPAC name of phenetole is a) Phenoxy benzene b) ethoxy benzene c) Methoxy benzene d) Propoxy benzene

232 220 17. In the following radioactive decay 92X 89Y how many α and β particles are ejected. a) 3α, 3β b) 5α, 3β c) 3α, 5β d) 5α, 5β 18. Electrophoresis is a ______property of a colloid. a) Optical b) Kinetic c) Electrical d) Magnetic 19. An emulsion is a Colloidal solution of a) two solids b) two liquids c) two gases d) one solid and one liquid 20. Silver salt used in Photography is

a) AgCl b) AgNO3 c) AgF d) AgBr 21. Proteins are. a) Polypeptides b) Polyacids c) Polyphenols d) Polyester 22. The molecular orbitals are filled according to a) Pauli’s exclusion principle b) Hund’s rule c) Aufbau principle d) All the above 23. Which one of the following crystal has 8:8 structure?

a) MgF2 b) CsCl c) KCl d) NaCl 24. A ‘d’ block metal www.kalvisolai.comion has a magnetic moment of 1.732 BM. The number of unpaired electrons are a) 1 b) 2 c) 3 d) 4 25. The SI unit of entropy is...... (ANSWER :d) a) Cal K-1 mol-1 b) erg K-1 mol-1 c) J deg-1 mol-2 d) J K-1 mol-1 26. Cephalins have beenR.ANNAMALAI implicated in the process of a) Metabolism b) Organisation of the body c) Blood purification d) Blood coagulation 27. ______forms oxocations. a) Lanthanides b) Actinides c) Noble gases d) Alkali metals

-5 -4 28. The rate constant of the forward and reverse reactions are 8 x 10 and 2 x 10 respectively, Kc is______a) 0.004 b) 0.02 c) 0.2 d) 0.4 29. The acid that cannot be prepared by grignard reagent is a) Acetic acid b) Formic acid c) Butyric acid d) Benzoic acid 30. When phenol is distilled with Zn dust it gives. a) benzaldehyde b) benzoic acid c) toluene d) benzene

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www.kalvisolai.com R.ANNAMALAI

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHEMISTRY), GOVT. GIRLS HR. SEC. SCHOOL GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT email: [email protected]. www.kalvisolai.com

HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question paper -I Choose and write the corret answer 30x1=30 1. En = -313.6/n2, If the value of Ei = -34.84 to which value ‘n’ corresponds to (a) 4 (b) 3 (c) 2 (d) 1 2. The bond order of nitrogen molecule is (a) 2.5 (b) 3 (c) 2 (d) 4 3. Noble gases have ...... electron affinity (a) High (b) low (c) zero (d) very low

4. The shape of XeF4 is (a)Tetrahedral (b) Octahedral (c) square planar (d) Pyramidal 5. Copper is extracted from (a) Cuprite (b) copper glance (c) Malachite (d) Copper pyrites 6. silver salt used in photography is

(a) AgCl (b) AgNO3 (c) AgF (d) AgBr 7. The most common oxidation state of Lanthanides is (a) +2 (b) +1 (c) +3 (d) +4 8. ______is used in gas lamp material

(a) MnO2 (b) CeO2 (c) N2O5 (d) Fe2O3 www.kalvisolai.com2- 9. The geometry of [Ni(CN)4] is (a) Tetrahedral (b) Square planar (c) Triangular (d) Octahedral 10. Which of the follower is used as neutron absorber in nuclear reactors? (a)Water (b)R.ANNAMALAI Deuterium (c) Uranium (d) Cadmium 11. The number of Chloride ions present per unit of CSCl ? (a) 6 (b) 8 (c) 1 (d) 4 12. In an adiabtic process Which of the following is correct? (a) q=w (b) q=0 (c) Δ E=q (d) p Δ v=0 13. When a liquid boils, there is (a) an increase in entropy (b) a decrease in entropy (c) an increase in heat of vapourisation (d) an increase in free energy 14. State of chemical equilibrium is (a) Dynamic (b) Stationary (c) Both (a) & (b) (d) None

15. For an endothermic equilibrium reaction, if K1and K2 are the equilibrium constants at T1 and T2

temperatures respectively and if T2>T1,then

(a) K1k2 (c) K1=K2 (d) None 16. The unit of zero order rate constant is (a) sec-1 (b) mol lit-1 sec-1 (c) mol sec-1 (d) lit2 sec-1

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 74 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

17. Oil soluble dye is mixed with emulsion and emulsion remains colorless then, the emulsion is (a) O/W (b) W/O (c) O/O (d) W/W 18. Colloids are purified by (a) Precipitation (b) coagulation (c) Dialysis (d) Filtration

19. Fe(OH)3 colloidal particles adsorb ______ions (a) Fe3+ (b) Mg2+ (c) Ca2+ (d) Cu2+ 20. Ostwald’s dilution law is applicabe to the solution of

(a) CH3COOH (b) NaCl (c) NaOH (d) H2SO4 21. The reaction of lucas reagent is fast with (a) ethanol (b) methanol (c) 2-propanol (d) 2-methl 2-propanol

22. An Organic compound C4H10O When heated with excess HI gives Only one type of alkyl iodide. The compound is (a) diethylether (b) methyl n-propylether (c) methyl iso propylether (d) n-butyl alcohol 23. When ether is exposed to air for sometime an explosive substance prpduced is (a) peroxide (b) Oxide (c)TNT (d) superoxide 24. The compound that does not undergo cannizzaro reaction is (a) Formaldehyde (b) Acetaldehyde (c) Benzaldehyde (d) Trimethyl Acetaldehyde 25. Which oi the following is least acidic? (a) C H OH (b) CH COOH (c) C H OH (d) ClCH COOH 2 5 www.kalvisolai.com3 6 5 2 26. Nitration of nitrobenzene at 373K results in (a) O-dinitro benzene (b) 1,3,5-trinitro benzene (c) P-dinitro benzeneR.ANNAMALAI(d) m-dinitro benzene 27. Primary amine acts as (a) Electrophile (b) Lewis base (c) Lewis base (d) Free radical 28. Which of the following will not undergo diazotisation? (a) m-toluidine (b) anline (c) p- amino phenol (d) benzylamine 29. Important constituent of cell wall is (a) Lipid (b) Cellulose (c) Protein (d) Vitamin 30. The most abundant carbohydrate is (a) glucose (b) fructose (c) Starch (d) cellulose

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question paper -II 1.de-Broglie equation is

mv hv h (a) λ= (b) λ=hmv (c) (d) h � λ= m λ= mv

2. The hybridisation in SF6 molecule is (a) sp3 (b) sp3d2 (c) sp3d (d) sp3d3 3. Across the period, electron affinity generally (a) decreases (b) increases (c) decreases and increases (d) increases and then decreases 4. Which has least melting point? (a) B (b) Al (c) Ga (d) In 5. Formation of coloured ions is possible when metal ions contain (a) paired electrons (b) unpaired electrons (c) lone pairs of electrons (d) none of the above 6. The value of magnetic moment of Ti3+ ion is (a) 0 (b) 1.73 (c) 2.83 (d) 3.87 7. The lanthanide contraction is due to (a) perfect shielding of 4f electrons (b) Imperfect shielding of 4f electrons (c) perfect shieldingwww.kalvisolai.com of 3d electrons (d) Imperfect shielding of 3d electrons 8. The actinide that exhibits oxidation state +6 is (a) Ac (b) Th (c) Pa (d) U 9. The geometry of [Fe(CN) ]4- is R.ANNAMALAI6 a) tetrahedral b) Square planar c) triangular d) Octahedral

238 206 10. In the nuclear reaction, 92U 82Pb the number of α and β particles emitted are a) 7α, 5β b) 6α, 4β c) 4α, 3β d) 8α, 6β 11. Frenkel defect is found in a) Nacl b) AgCl c) CsCl d) FeS 12. Which of the following does not result in an increase in the entropy ? a) Crystallisation of sucrose from solution b) Rusting of iron c) conversion of ice to water d) Vapourisation of Camphor 13. If Δ G for a reaction is negative, the change is a) Spontaneous b) Non-Spontaneous c) Reversible d) All of these

14. If the equilibrium constants of the following reactions are 2A B is K1and B 2A is

K2, then 1 2 1 a) K =2K b) K = c) K = ( K ) d) K = 2 1 2 1 K2 2 1 1 K 15.At chemical equilibrium 2 1 a) Q > Kc b) Q < Kc c) Q = Kc d) Q = Kc R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 76 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

16. The half life period of a first order reation is 10 minits. then its rate constant is a) 6.93 x 102 min-1 b) 0.693 x 102min-1 c) 0.693 x 102min-1 d) 69.3 x 10-1 min-1 17. Somke is a colloidal solution of a) gas in liquid b) liquid in gas c) gas in solid d) solid in gas

18. 2SO2 + O2 2SO3 Homogeneous catalyst for this reaction is

a) Pt b) V2O5 c) NO d) As2O3 19. Which one of the following is used in the Purification of drinking water? a) colloidion b) alum c) silver bromide d) chromium salt 20. The specific conductance of 0.01M solution of KCL is 0.0014 ohm-1cm-1 at 250C. It’s equivalent conductance is a) 14ohm-1-cm2 equi-1 b) 140ohm-1-cm2 equi-1 c) 1.4ohm-1-cm2 equi-1 d) 0.14ohm-1-cm2 equi-1 21.An alcohol which dose not undergo dehydrogenation when passed Over heated Cu at 573K is a) n- butyl alcohol b) sec- butyl alcohol c) iso- butyl alcohol d) tert- butyl alcohol 22.When ethyl iodide is treated with dry silver oxide it forms a) ethyl alcohol b) diethyl ether c) silver ethoxide d) ethyl methyl ether 23. A reaction of ether in which α hydrogen atom involves a) halogenation b) peroxide formation c) oxonium salt formation d) all of these 24. Decolourised Schiff’swww.kalvisolai.com reagent gives pink colour with a) acetone b) acetaldehyde c) ethyl alcohol d) methyl acetate 25. Acetyl chloride cannot be prepared from acetic acid using a) PCl b) PCl c) SOCl d) NaCl 5 R.ANNAMALAI3 2 26. Electrophile used in the nitration of benzene is a) hydronium ion b) sulphuric acid c) nitronium ion d) bromide ion 27. Nitro benzene on reduction using tin and hydrochloric acid gives a) aniline b) phenyl hydroxyl amine c) hydrazo benzene d) azobenzene

28. An organic compund ‘A’ with molecular formula C3H9N neither give nitrogen nor yellow oily liqyid

with HNO2. Then ‘A’ is

a)CH3CH2CH2NH2 b) CH3- CH2- NH - CH3

c) CH3-N-CH3 d) All of these

CH3 29. A mono saccharide among the following is a) Sucrose b) Cellulose c) Maltose d) Glucose 30. which is not true of an amino acid? a) amino acid foms zwitter ion b) has isoelectric point c) dual behaviour d) amino acid is insoluble in NaOH solution

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question paper -III 1. The energy of electron in an atom is given by En= - 2 2me4 - 4 2me4 - 2 2me2 - 4 2e2m a) b) c) d) n2h2 n2h2 n2h2 n2h2 2.Bond order in oxygen molecule is a) 0 b) 1 c) 2 d) 3 3. The Element with the highest electron affinnity is a) fluorine b) chlorine c) bromine d) iodine

4.The shape of PCl5 is a) trigonal pyramidal b) trigonal bipyramidal c) linear d) terahedral 5. The correct outer electronic configuration of copper is a) 3d9 4s2 b) 3d10 4s1 c) 3d4 4s2 d) 3d54S1 6.The maganetic moment of V3+ ion is a)) 3 BM b) 2 ) 2 BM c) 0 d)) 35 BM 7.In f-block elements the following shells are incomplete a) n b) (n-1) c) (n-2) d) all the above 8.______from oxocations a) Lanthanides b) Actinides c) Noble gases d) Alkalimetals 9. Which is not an anionicwww.kalvisolai.com complex?

a) [Cu(NH3)4]Cl2 b) K3[Fe(CN)6] c) K4[Fe(CN)6] d) K2[Zn(CN)4] 10. Loss of β- particles is equivalent to a) increase of one protonR.ANNAMALAI only b) decrease of one neutron only c) both (a) and (b) d) none of these 11. A regular three dimensional arrangement of identical points in space is called a) unit cell b) space lattice c) isomorphism d) crystal lattice Δ H and Δ S respectively are 12. For the reaction 2Cl(g) Cl2(g) the sings of a) +,- b) +,+ c) -,- d) -,+ 13. All naturally occuring processes proceed spontaneously in a direction Which leads to a) decrease in entropy b) increase in enthalpy c) increase in free energy d) decrease in free energy 14. The active mass of 28g of nitrogen in 2 litres is a) 1 M b) 0.5 M c) 2 M d) 4 M

15. The catalyst used in the Synthesis of SO3 by contact process is

a) Fe b) I2 c) Mo d) V2O5 16. For a reaction aA bB the rate of a reaction is incresed by twice when the concentration of the reactant is increaesed by four times. The rate equation is Rate= 1 3 a) K[A] 2 b) K[A]2 c) K[A]4 d) K[A]2 R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 78 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

17. Fog is a colloidal solution of a) gas in liquid b) liquid in gas c) gas in soild d) soild in gas 18. The migration of colloidal particles under the influence of electric fleld is known as a) dialysis b) cataphoresis c) electro- osmosis d) electro dialysis 19. principle of cottrell smoke precipitator is coagulation by a) addition of electrolyte b) addition of oppositely charged colloid c) oppositely charged electrode d) all of these 20. A solution which is resistant to change of pH on addition of small amount of an acid or a base is known as a) buffer solution b) true solution c) neutral solution d) ideal solution 21. When phenol is heated with Zinc dust it gives a) benzene b) 2,4,6 - trinitro benzene c) 1,3,5 - trinitro benzene d) no reaction 22. Oxygen atom of ether is a) very reactive b) replaceable c) oxidising d) comparatively inert 23. When an ether ‘A’ is treated with hot concentrated hydroiodic acid gives only ethyl iodide. then A is a) diethyl ether d) methyln-propyl ether c) methyl isopopyl ether d) all of these 24. The compound which does not reduce Fehling’s solution is a) formaldehyde b) acetaldehyde c) benzaldehyde www.kalvisolai.comd) propionaldehyde

25.The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is a) metamerism b) position c) chain d) functional 26. The basic character ofR.ANNAMALAI amines is due to a) tetrahedral structure b) presence of nitrogen atom c) lone pair of electrons on nitrogen atom d) high electronegativity of nitrogen 27. When aqueous solution of benzene diazonium chloride is boiled the product is a) benzyl alcohol b) benzene and nitrogen c) phenol d) phenyl hydroxyl amine 28. IUPAC name of methyl cyanide is a) methane nitrile b) aceto nitrile c) ethane nitrile d) cyano methane 29. primary structure of proteins refers to a) the amino acids present b) the shape of protein c) the peptide bond d) the sequence of amino acid 30. Sucrose is a non reducing disaccharide, because

a) C1of glucose is bonded to C1of fructose b) C2 of glucose is bonded to C1of fructose

c) C1 of glucose is bonded to C2of fructose d) C2 of glucose is bonded to C2of fructose

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question IV 1. If the energy of an electron in the second Bohr orbit of H-atom is -E What is the energy of the electron in the first orbit? a) 2E b) -2E c) -4E d) 4E

2- 2. The type of hybridisation in CO3 ion is a) sp b) sp2 c) sp3 d) sp3d

3. When XA>>XB, A-B bond is a) polar covalent b) non - polar covalent c) lonic d) metallic 4. Which shows only -1 oxidation state? a) fluorine b) bromine c) chlorine d) iodine 5. Paramagnetism is the Property of a) Paired electrons b) Completely filled electronic sub-shells c) unpaired electrons d) completely vacant electronic subshells 6. Which of the following is not coloured?

2+ 2- a) [Cu(NH3)4] b) [CdCl4] c) K4[Fe(CN)6] d) K2[Cu(CN)4] 7.Actinide contraction is due to imperfect shielding of a) 4f electrons b) 5f electrons c) 6d electrons d) 7s-electrons 8. The lanthanide contraction is responsible for the fact that a) Zn and Y have aboutwww.kalvisolai.com the same radius b) Zr and Nb have similar oxidation state c) Zr and Hf have about the same radius d) Zr and Zn have the same oxidation state

2- 9. The type of hybridisation of the central metal ion in the complex [Ni(CN)4] is a) sp3 b) spR.ANNAMALAI3 d c) d sp2 d) d sp3 10. The most penetrating radiations are a) α -rays b) β-rays c) r-rays d) all are equally penetrating 11. In a simple cubic cell each point on a corner is shared by a) one unit cell b) eight unit cell c) four unit cell d) two unit cell 12. Which of the following, the process is always non feasible a) ΔH >0,ΔS>0 b) ΔH <0,ΔS>0 c) ΔH >0,ΔS<0 d) ΔH <0,ΔS<0 13. The standard free energy value (Go) of formation of an element in its stable state is a) Zero b) negative c) positive d) unpredictable

14. In the reversible 2HI H2 + I2 Kp is a) greater than kc b) less then kc c) equal to Kc d) zero 15. Two moles of ammonia gas introduced into a previously evacuated 1.0 dm3 vessel in which it partially dissociates at high temerature. At equilibrium 1.0 mole of ammonia remains The equilibrium constant Kc for the dissociation is a) 27/16 ( mol dm-3 )2 b) 27/8 ( mol dm-3 )2 c) 27/4 ( mol dm-3 )2 d) None of these R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 80 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

d[N2O5] 16. 2N2 O5 4NO2 + O2 , - = K1[N2O5] dt

d[NO2] d[O2] = K2[N2O5] and = K3[N2O5] the relation between K1,K2 and K3 is dt dt

a) 2K1=4K2=K3 b) K1=K2=K3

c) 2K1=K2=4K3 d) 2K1,=K2=K3 17. The Tyndall effect associated with colloidal particles is due to a) presence of charge b) scattering of light c) absorption of light d) reflection of light 18. In the case of physical absorption, there is desorption when a) temperature increases b) tempereature decreases c) pressure increases d) concentration increases 19. Rubber is obtained by a) dissolving latex in a suitable solvent b) coagulation of latex c) evaporation of latex d) all of these 20. The unit of cell constant is a) ohm-1m-1 b) m-1 c) ohm-1m2eq-1 d) no unit 21. The IUPACname of (CH ) C-OH is www.kalvisolai.com3 3 a) 2,2-dimethyl- 1-propanol b) neopenthyl alcohol c) 2-methyl -2-propanol d) Trimethylene carbinol 22. Willamson’s synthesisR.ANNAMALAI is an example of a) nucleophilic addition b) electrophilic addition c) electrophilic substitution d) nucleophilic substitution 23. 1-Methoxy propane and 2-Methoxy propane are a) metamers b) position isomers c) functional isomers d) chain isomers 24. Acetophenone and benzophenone can be distinguished by a) lucas test b) ferric chloride solution c) iodoform test d) carbylamine test 25. The acid that reduces Tollen’s reagent is a) methanoic acid b) oxalic acid c) salicylic acid d) oleic acid 26.When nitro methance is condensed with acetone it gives a) 1-nitro-2-propanol b) 1-nitro-2-methyl-2-propanol c) 1-nitro-2-methoxy propane d) no reaction

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 81 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

27. Nitrobenzene on electrolytic reduction in conc sulphuric acid the intermediate formed is

a) C6H5-NH-NH-C6H5 b) C6H5NH OH

c) C6H5-N=N-C6H5 d) C6H5HSO4 O

28. The isomerism exhibited by CH3- CH2- N and CH3- CH2- O - N=O is O a) position b) chian c) functional d) tautomerism 29.The amino acid without chiral carbon is a) glycine b) alanine c) proilne d) thyrosine 30. In acid medium amino acids exist in the from of a) cations b) anions c) dipolar ions d) neutral molecules

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model question-V 1. Which of the following particle having same kinetic energy, would have the maximum de-Brogile wave length? a) α - Particle b) Proton c) β - Particle d) neutron 2. Which one of the following molecule is paramagnetic?

a) H2 b) He2 c) N2 d) O2 3. Among the following Which has maximum ionisation energy a) alkali b) alkaline earth metals c) halogens d) noble gases 4. An element which is in 15th group and third period was burnt in limited supply of air to give oxide A.A is

a) NO2 b) P2O3 c) P2O5 d) SO3 5. The correct statement in respect of d-block elements is a) they are all metals b) they show variable valency c) they form coloured ions and complex salts d) all the above statement are correct.

6. Zn displaces Au from K[Au(CN)2], because a) Zn is more electro positive than Au b) Au is more electro positive than Zn c) Zn is more electro negative than Au d) Atomic mass of Zn is greater than Au 7. The elements in which the extra electron enters (n-2) orbitals are called a) s- block elementswww.kalvisolai.com b) p-block elements c) d-block elements d) f-block elements 8. Alloys of lanthanides are called as a) mish - metals R.ANNAMALAIb) metalloid c) plate metals d) actinides 9. IUPAC name of the complex K3[Cr(C2O4)3]3H2O is a) potassium tri oxalato chromate (III) trihydrate b) triaquo potassium tri oxalato chromate (III) c) potassium tris (oxalato) chromate (III) trihudrates d) potassium tris (oxalato) chromate (III) trihudrate 10. High speed projectiles may chip a heavy nucleus into several fragments in a) nuclear fission reactions b) nuclear fusion reactions c) spallation reaction d) all of these 11. Bragg’s equations is a) nλ =2d sin θ b) nd =2λ sin θ c) λd =2n sin θ d) ndλ =2 sin θ 12. Aliquid which obeys Trouton’s rule is

a) H2 b) H2O c) CH3 COOH d) CCl4 13. Change in Gibb’s free energy is given by a) Δ G = Δ H +T Δ S b) Δ G = Δ H - T Δ S c) Δ G = Δ H x T Δ S d) none of the above R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 83 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT www.kalvisolai.com

14. The relation between Kp and Kc of a reversible reaction is

Δng Δng a) Kc=Kp(RT) b) Kp=Kc(RT) c) Kp=Kc d) Kp=1/Kc

15. In the equilibrium N2+3H2 2NH3 The maximum yield of ammonia will be obtained with the process having a) low pressure and high temperature b) low pressure and low temperature c) high pressure and high temperature d) high pressure and low temperature 16. In a first order reaction, the time taken to react 99.9% of the raection is ______times its half life period a) two b) five c) ten d) hundred 17. For chemisorption, which is wrong? a) irreversible b) it requires activation energy c) it forms multimolecular layers on adsorbant d) surface compounds are formed 18. An emulsion is a collidal solution of a) two solids b) two liquids c) two gases d) one solid and one liquid 19.Awrong statement aboutwww.kalvisolai.com catalyst is a) remains unchanged in mass and chemical composition at the end of the reaction. b) only a small quantity is needed c) they do not affect R.ANNAMALAIthe position of equilibrium d) they can initiate a reaction. 20. Equimolar solution of which one of the following has greater PH value

a) HCl b) CH3COOH c) NaOH d) NH4OH 21.Iso- butyl alcohol when subjected to victor meyer’s test gives a) blue colour b) red colour c)violet colour d) no colour 22. According to lewis concept of acids and bases, ethers are a) neutral b) acidic c) basic d) amphoteric

23. PCl5does not give HCl with a) ethyl alcohol b) diethylether c) acetic acid d) phenol 24. From which of the following tertiary butyl alcohol is obtained by the action of methyl magnesium iodide?

a) HCHO b) CH3CHO c) CH3COCH3 d) CO2

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25. Which one of the following compound gives violet colour with neutral ferric chloride and also effervescence with sodium bicarbonate? a) aspirin b) methyl salicylate c) salicylic acid d) phenol 26. Which one of the following will not undergo diazotisation? a) m-toluidine b) aniline c) p- amino phenol d) benzyl amine 27. Biphenyl is the product of a) Schotten Bauman’s reaction b) Gomberg reaction c) Friedel craft’s reaction d) sand meyer reaction 28. During nitration of aniline m-nitro aniline is also formed due to a) meta directing nature of -NH2 group b) protonation of -NH2 group c) +I effect of -NH2 group d) resonance in benzene 29. Inversion of sucrose referes to a) oxidation of sucrose b) reducation of sucrose c) hydrolysis of sucrose,www.kalvisolai.com to glucose and fructose d) polymerisation of sucrose 30. Which one of the following represents peptide bond O R.ANNAMALAI O

a) - C - NH2 b) - C - N - H O

c) - C - NH2 d) - C - NH3 -

R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 85 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT