Chemical Process MCQs

Question 1

During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as

Accepted Answer

Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)

Answer

It is very corrosive at elevated temperature

Answer

It decomposes on further increasing the temperature

Answer

None of these

Question 2

Which of the following is not present in bagasse fibre?

Accepted Answer

None of these

Answer

Cellulose

Answer

Lignin

Answer

Pentogens

Question 3

Sodium carbonate (soda ash) is not used in the manufacture of

Accepted Answer

Detergents

Answer

Fire extinguishers

Answer

Sugar

Answer

Baking powder

Question 4

Nitric acid is not used in the manufacture of

Accepted Answer

Detergents

Answer

Fertilisers

Answer

Aqua regia

Answer

Explosives

Question 5

The basic constituent of vegetable oils is

Accepted Answer

Triglyceride

Answer

Fatty acids

Answer

Fatty alcohol

Answer

Mono esters

Question 6

Cellulose percentage in bamboo fibre is about

Accepted Answer

50

Answer

10

Answer

20

Answer

85

Question 7

In premitive days, __________ was being manufactured by Leblanc Process.

Accepted Answer

Soda ash

Answer

Alum

Answer

Washing soda

Answer

Calcium carbide

Question 8

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

Accepted Answer

Precipitation

Answer

Emulsification

Answer

Dispersion

Answer

Wetting

Question 9

Nylon 6-6 is manufactured from

Accepted Answer

Hexamethylene diamine and adipic acid

Answer

Hexamethylene diamine and maleic anhydride

Answer

Caprolactum

Answer

Dimethyl terephthalate and ethylene glycol