Chemical Process MCQs

Question 1

Shrinkage volume in cement setting does not depend upon the

Accepted Answer

Sand to cement ratio

Answer

Water to cement ratio

Answer

Ambient temperature fluctuation

Answer

Drying period

Question 2

Maleic anhydride is produced by catalytic oxidation of

Accepted Answer

Benzene

Answer

Toluene

Answer

Ethyl alcohol

Answer

Naphthalene

Question 3

Which of the following is not a product of coal tar distillation?

Accepted Answer

None of these

Answer

Anthracene

Answer

Cresote oil

Answer

Carbolic oil

Question 4

Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

Accepted Answer

All of the above

Answer

Has larger production capacity per unit cell

Answer

Consumes less power per ton of Cl2 produced

Answer

Produces high purity (70%) caustic soda directly

Question 5

Pick out the wrong statement.

Accepted Answer

None of these

Answer

Cold rubber (SBR) is superior as compared to hot rubber (SBR)

Answer

Polymerisation temperature can modify the properties of SBR

Answer

Production of cold SBR employs lower pressure as compared to that of hot SBR

Question 6

__________ of quicklime produces slaked lime.

Accepted Answer

Hydration

Answer

Dehydration

Answer

Hydrogenation

Answer

None of these

Question 7

Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

Accepted Answer

Cause cholesterol build up and blood clotting

Answer

Are prone to rancid oxidation

Answer

Always contain some amount of nickel (as their complete removal is very difficult)

Answer

Have affinity to retain harmful sulphur compounds

Question 8

Which of the following fuel gases contains maximum amount of carbon monoxide?

Accepted Answer

L.D. converter gas

Answer

Coke oven gas

Answer

Water gas

Answer

Blast furnace gas

Question 9

Potassium is kept & transported under

Accepted Answer

Kerosene oil

Answer

Water

Answer

Liquid ammonia

Answer

Alcohol