2020/TDC(CBCS)/ODD/SEM/CHMSEC–501T/CC (Page 2) TDC (CBCS) Odd Semester Exam., 2020 Held in June, 2021 3. What are the safest sunscreen ingredients?

CHEMISTRY 4. What is ? (HOME ASSIGNMENT) ( 5th Semester ) 5. Write the name of the elements mainly found in . Course No: CHEMISTRY-SEC-501 Paper Code: CHMSEC–501T 6. What are the uses of face powder? ( and Perfumes) Full Marks: 50 Pass Marks:20 7. What is used for?

Time: To be submitted within the Scheduled time The figures in the margin indicate full marks for the questions 8. What is vanishing cream used for?

INSTRUCTIONS 9. Does cream contain alcohol? 1. Read the Questions; write Answer & Send as instructed hereunder. 2. To write answers use maximum eight pages excluding front page. 10. Give an example of artificial flavour. 3. On the FRONT PAGE, write your Name, Semester (Hons/Pass), Subject (Regular /Arrear,), Course No., Paper Code, University Roll & No., Registration No. & year, Contact 11. What is antiperspirant? No., email id in the front page. Write Roll No. & Registration No. in each page. 4. Write answers using black ball pen in own hand writing. 5. Limit the answer of the questions a) 1 mark - one word/ one line; b) 2 marks - two/ three 12. Which metal and its compounds are widely used as lines (30 words maximum); & c) 5 marks - 5/ 7 lines (not more than 100 words). active antiperspirant? 6. Scan the pages of your Answer sheet and make a single pdf file of the scanned images; the file name should be the name of the student(space)Papercode_RollNo ; illustration- Ajanta Bagdi (Roll No. 12345) appearing in Paper CHMSEC-301T will write file name as 13. Give an example of monoterpenoid essential oils. Ajanta Bagdi CHMSEC-301T_12345 7. Send your pdf file to the email address [email protected] as an attachment within 14. Write the molecular structure of eugenol. 22.06.2021 positively. No request will be entertained after that. Satisfy yourself by receiving a return mail. 15. Write the molecular structure of geraniol.

SECTION—A 16. Write the name of an essential oil that has sweet rose

Answer any fifteen questions: 1×15=15 floral odour.

1. Give any one suitable example of herbal hair dye. 17. Write the name of the flowers from which rose oil is generally extracted. 2. What is the use of ?

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18. Write the name of the main odorous 30. What is ? constituents of civet oil.

19. Write the name of the compound used in face SECTION—B powders to make it adhere to skin. Answer any five questions : 2×5=10

20. What is the primary function of shampoo? 31. Give the name of harmful ingredients of hair spray.

21. Give an example of thickening agent used in

shampoo. 32. Describe briefly the composition of sunscreen

. 22. Write the name of primary film former agent of a nail

enamel. 33. Why is borax used in cold cream?

23. Write the name of an active solvent used in nail 34. What is the difference between cold cream and enamel. vanishing cream?

24. State the main components of hair remover cream. 35. State the composition of good perfume.

25. Write the name of an oxidizing agent used in 36. What is the role of solvent in perfume? bleaching cream.

37. What is the function of plasticizers used in nail 26. Write the name of a bleaching agent used in enamel? bleaching cream.

38. How can you make cream at home? 27. What is the role of chalk in face powder?

39. What is the primary function of sunburn lotion? 28. Write the name of the solvents used in

remover. 40. What is the primary function of cold cream?

29. Which types of compounds are used as secondary

film former in nail enamel?

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SECTION—C

Answer any five questions : 5×5=25

41. Describe briefly the preparation of talcum powder.

42. State the method of preparation for nail enamel.

43. Describe briefly the raw materials and their source used in .

44. What is flavour? Describe briefly the role of flavour in .

45. Describe a suitable method for the extraction of essential oil from plant source.

46. Describe briefly the use and purpose of 2-phenylethyl alcohol in the cosmetic products.

47. Describe briefly about the epilatory hair remover.

48. Write the method of preparation for shampoo.

49. What are the types of face creams? Also mention the function of each type.

50. Describe in brief about the method of preparation of hair dye.

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2020/TDC(CBCS)/ODD/SEM/CHMSEC–501T/CC