Chemical Process MCQs

Question 1

Bakelite is

Accepted Answer

Same as thermosetting phenol-formaldehyde

Answer

Same as poly tetrafluoroethylene (PTFE)

Answer

An inorganic polymer

Answer

Not a polymer

Question 2

Presence of H2S in raw water (to be chlorinated) results in the

Accepted Answer

Increased dosage of chlorine to provide a disinfecting residual in the water

Answer

Reduced softening capacity of zeolite

Answer

Easy removal of its hardness

Answer

None of these

Question 3

Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

Accepted Answer

Arsenic

Answer

Carbon

Answer

Lead

Answer

Sulphur

Question 4

The temperature in the calcium carbide furnace is __________ °C.

Accepted Answer

2000-2200

Answer

200-300

Answer

700-850

Answer

4000-4500

Question 5

Bio-degradable detergents

Accepted Answer

Can be readily oxidised

Answer

Pose problem in sewerage plant

Answer

Have an isoparaffinic structure

Answer

Should not be used as it spoils the cloth

Question 6

Bitterns is a/an

Accepted Answer

None of these

Answer

Unsaturated fat

Answer

Starting material for the production of iodine

Answer

By-product of chlor-alkali industry

Question 7

Which is the most suitable dye for synthetic fibres?

Accepted Answer

Acid dye

Answer

Azoic dye

Answer

Pigment dye

Answer

Mordant dye

Question 8

Blue vitriol is chemically

Accepted Answer

Copper sulphate

Answer

Ferrous sulphate

Answer

Copper nitrate

Answer

Aluminium sulphate

Question 9

Presence of carbonaceous matter in the sewage

Accepted Answer

All of the above

Answer

Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures

Answer

Reduces sulphate ions to sulphides causing obnoxious smell

Answer

Increases the quantity of chlorine used for its purification