Chemical Process MCQs

Question 1

Dacron is a

Accepted Answer

None of these

Answer

Condensation product of hexam-ethylene diamine and adipic acid

Answer

Thermosetting material

Answer

Condensation product of dimethyl terephthalate and ethylene glycol

Question 2

Dacron is a/an

Accepted Answer

Polyester

Answer

Unsaturated polyster

Answer

Polyamide

Answer

Inorganic polymer

Question 3

Catalytic oxidation of naphthalene produces

Accepted Answer

Phthalic anhydride

Answer

Styrene

Answer

Phenol

Answer

None of these

Question 4

DDT stands for

Accepted Answer

Dichloro-diphenyl-trichloroethane

Answer

Diethyl-diphenyl-trichloromethane

Answer

Dichloro-diphenyl-trichloromethane

Answer

Diphenyl-dichloro-trichloromethane

Question 5

Economics of 'Solvay Process' depends upon the efficiency of

Accepted Answer

Ammonia recovery and size of the plant

Answer

Carbonating tower

Answer

Ammonia recovery

Answer

Ammoniation of salt solution

Question 6

Pick out the wrong statement. Iodine value of an oil or fat is

Accepted Answer

Independent of the type of oil, whether it is drying or non-drying

Answer

The number of grams of iodine taken up by 100 gm of oil or fat

Answer

A measure of its unsaturation

Answer

Helpful in findings its adulteration & its suitability for making soap

Question 7

Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Accepted Answer

Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)

Answer

Inhibits its corrosive effects

Answer

Does not allow redeposition of dirt on the cleaned surface

Answer

None of these

Question 8

Use of hydrated lime in water treatment

Accepted Answer

All of the above

Answer

Before filtration, reduces the bacterial load on filters

Answer

After filtration, combats the corrosiveness of water due to the presence of O2 & CO2

Answer

Is to adjust the pH value

Question 9

The drug used in contraceptives is

Accepted Answer

Mestranol

Answer

Sulphadizene

Answer

Methyl salicylate

Answer

Pencillin