Chemical Process MCQs

Question 1

Paper pulp produced by kraft/sulphate process is

Accepted Answer

Strong fibrous

Answer

Bleached easily

Answer

Dull white in color

Answer

Dark colored

Question 2

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Accepted Answer

Slaked lime

Answer

Soda lime

Answer

Calcium perchlorate

Answer

None of these

Question 3

Good quality of edible salt is obtained from brine by the process of

Accepted Answer

Vacuum evaporation

Answer

Solar evaporation

Answer

Freeze drying

Answer

Electrolysis

Question 4

Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

Accepted Answer

Anti soil redeposition agent

Answer

Surfactant

Answer

Builder

Answer

Optical brightening agent

Question 5

Enzymes are organic catalysts used in the __________ reactions.

Accepted Answer

Biochemical

Answer

Chemical

Answer

Photochemical

Answer

Electrochemical

Question 6

The catalyst used in the manufacture of DDT is

Accepted Answer

20% oleum

Answer

Alumina

Answer

Silica

Answer

Aluminium chloride

Question 7

Sulphuric acid saturated with SO3 is called

Accepted Answer

Oleum

Answer

Concentrated H2SO4

Answer

Sulphurous acid

Answer

None of these

Question 8

Diaphragm electrolytic cell as compared to mercury electrolytic cell

Accepted Answer

Requires lesser investment for similar capacity

Answer

Produces 70% NaOH solution

Answer

Requires less specific power consumption for the production of chlorine

Answer

All of the above

Question 9

Nylon-6 as compared to Nylon-66 is having higher

Accepted Answer

None of these

Answer

Hardness

Answer

Abrasion/resistance

Answer

Melting point