Chemical Process MCQs

Question 1

In sulphate pulp manufacture, the pressure and temperature in the digestor is

Accepted Answer

10 atm., 170-180°C

Answer

10 atm., 800 °C

Answer

1 atm., 170 - 180°C

Answer

L atm., 800°C

Question 2

Drinking (potable) water treatment does not involve

Accepted Answer

Softening

Answer

Coagulation

Answer

Sedimentation

Answer

Disinfection

Question 3

Esterification reaction produces

Accepted Answer

Soap

Answer

Detergent

Answer

Vanaspati

Answer

Mercaptans

Question 4

Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.

Accepted Answer

Soft

Answer

Hard

Answer

Metallic

Answer

Lubricating

Question 5

Terylene is

Accepted Answer

Both A & B

Answer

Same as dacron

Answer

A polyester

Answer

Neither A nor B

Question 6

The chamber process is

Accepted Answer

None of these

Answer

Preferred over contact process for producing 98 to 100% H2SO4 and various oleums

Answer

Non-catalytic and operates only on pyrites

Answer

A batch process for directly producing high strength (98 to 100%) H2SO4

Question 7

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

Accepted Answer

10

Answer

1

Answer

25

Answer

40

Question 8

Which of the following is a detergent?

Accepted Answer

Alkyl benzene sulphonate

Answer

Benzene hexachloride

Answer

Polytetraflouroethylene

Answer

Cellulose nitrate

Question 9

Which of the following is a detergent?

Accepted Answer

Alkyl benzene sulphonate (ABS)

Answer

Fatty alcohol

Answer

Fatty acids

Answer

Methylene chloride