Chemical Process MCQs

Question 1

Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to

Accepted Answer

Reduce the variation in its viscosity with temperature

Answer

Reduce its viscosity

Answer

Increase its viscosity

Answer

Increase the variation in its viscosity with temperature

Question 2

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

Accepted Answer

Teflon

Answer

Bakelite

Answer

Neoprene

Answer

Nylon-66

Question 3

Lindane is

Accepted Answer

BHC (Benzene Hexa Chloride) containing 99% γ-isomer

Answer

Not a fumigant

Answer

A by-product of BHC manufacture

Answer

Both B and C

Question 4

Litharge is

Accepted Answer

Lead oxide

Answer

Zinc oxide

Answer

Zinc sulphide

Answer

Cellulosic photographic material

Question 5

Lithopaneis

Accepted Answer

ZnS (white pigment)

Answer

Explosive

Answer

White lead

Answer

Filter aid

Question 6

Which of the following is an yellow pigment?

Accepted Answer

Lead chromates

Answer

Titanium dioxide

Answer

Ferrous sulphate

Answer

Zinc sulphides

Question 7

Which of the following is not an antibiotic?

Accepted Answer

Quinine

Answer

Penicillin

Answer

Streptomycin

Answer

Tetracyclin

Question 8

Which of the following is not an insecticide?

Accepted Answer

Hexane

Answer

Hydrocyanic acid

Answer

Nicotine

Answer

Sodium flouride

Question 9

Nylon 66 is so named because the

Accepted Answer

Average degree of polymerisation of the polymer is 1966

Answer

Number of carbon atoms between two nitrogen atoms are 6

Answer

Number of nitrogen atoms between two carbon atoms are 6

Answer

Polymer was first synthesised in 1966