metallurgy menti quiz, 2021
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*Link also available in description BE READY IT'S QUIZ TIME Go to www.menti.com And enter the code 12 13 74 3 The iron obtained from the blast furnace is called: a. Pig iron b. Cast iron c. Wrought iron d. steel The iron obtained from the blast furnace is called: a. Pig iron b. Cast iron c. Wrought iron d. steel Impure aluminium is purified by: a. Baeyer’s process b. Hall’s process c. Hoop’s process d. Serpeck’s process Impure aluminium is purified by: a. Baeyer’s process b. Hall’s process c. Hoop’s process d. Serpeck’s process The material mixed before ore is subjected for smelting in the extraction of iron are: a. Coke and silica b. Coke and limestone c. Limestone and silica d. Coke, limestone and silica The material mixed before ore is subjected for smelting in the extraction of iron are: a. Coke and silica b. Coke and limestone c. Limestone and silica d. Coke, limestone and silica Refining of tin cannot be done by: a. Cupellation b. Liquation c. Poling d. Electrorefining Refining of tin cannot be done by: a. Cupellation b. Liquation c. Poling d. Electrorefining Which of the following pair is correctly matched? a. Copper- Oxidative refining b. Nickel- Kroll’s process c. Mercury- Distillation d. Lead- Van Arkel method Which of the following pair is correctly matched? a. Copper- Oxidative refining b. Nickel- Kroll’s process c. Mercury- Distillation d. Lead- Van Arkel method Carbon cannot be used in the reduction
of Al2O3 because: a. It is non-metal.
b. The heat of formation of CO2 is
more than that of Al2O3. c. Pure carbon is easily not available.
d. The heat of formation of Al2O3 is
too high. Carbon cannot be used in the reduction
of Al2O3 because: a. It is non-metal.
b. The heat of formation of CO2 is
more than that of Al2O3. c. Pure carbon is easily not available.
d. The heat of formation of Al2O3 is
too high. On heating quick lime with coke in an electric furnace, we get:
a. Ca and CO2 b. CaCO3 c. CaO
d. CaC2 On heating quick lime with coke in an electric furnace, we get:
a. Ca and CO2 b. CaCO3 c. CaO
d. CaC2 Boron can be obtained by various methods but not by:
a. Thermal decomposition of B2H6 b. Pyrolysis of BI3 c. Reducing BCl3 with H2 d. Electrolysis of fused BCl3 Boron can be obtained by various methods but not by:
a. Thermal decomposition of B2H6 b. Pyrolysis of BI3 c. Reducing BCl3 with H2 d. Electrolysis of fused BCl3 When alumina is heated with carbon in nitrogen atmosphere, the products are: a. Al + CO
b. Al + CO2 c. Al + CO + CO2 d. AlN + CO When alumina is heated with carbon in nitrogen atmosphere, the products are: a. Al + CO
b. Al + CO2 c. Al + CO + CO2 d. AlN + CO The method of electrolytic refining is not suitable with metal: a. Aluminium b. Copper c. Mercury d. Silver The method of electrolytic refining is not suitable with metal: a. Aluminium b. Copper c. Mercury d. Silver
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