Chemical Process MCQs

Question 1

Nitrile rubber is produced by the polymerisation of

Accepted Answer

Acrylonitrile and butadiene

Answer

Acrylonitrile and styrene

Answer

Isobutylene and isoprene

Answer

None of these

Question 2

Helium is produced on commercial scale from

Accepted Answer

Natural gas

Answer

Air

Answer

Coke oven gas

Answer

None of these

Question 3

__________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace.

Accepted Answer

Limestone

Answer

Bauxite

Answer

Quartz

Answer

Manganese

Question 4

Ore concentration by froth floatation utilises the __________ of ore particles.

Accepted Answer

Wetting characteristics

Answer

Density difference

Answer

Terminal velocities

Answer

None of these

Question 5

Separation of fresh water from sea water can be done by the __________ operation.

Accepted Answer

Reverse osmosis

Answer

Osmosis

Answer

Absorption

Answer

Adsorption

Question 6

Bisphenol A is produced by the condensation of acetone with

Accepted Answer

Phenol

Answer

Formaldehyde

Answer

Ethyl alcohol

Answer

Diethyl ether

Question 7

Which of the following is a disacchride?

Accepted Answer

Sucrose

Answer

Glucose

Answer

Starch

Answer

Maltose

Question 8

Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

Accepted Answer

15 - 20

Answer

1 - 2

Answer

50 - 60

Answer

80 - 85

Question 9

Salt cake is chemically represented by

Accepted Answer

Na2SO4

Answer

CaSO4.$$\frac{1}{2}$$ H2O

Answer

MgSO4

Answer

BaSO4