Chemical Process MCQs

Question 1

Alkylbenzene sulfonate (ABS) is a

Accepted Answer

Detergent

Answer

Rubber

Answer

Pesticide

Answer

Polyester

Question 2

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Accepted Answer

Spraying 66° Be H2SO4 counter current to the flow of the gas

Answer

Passing it through a bed of diatomaceous earth

Answer

Passing it through a bed of silica gel

Answer

None of these

Question 3

The catalyst used in shift converter is

Accepted Answer

Nickel

Answer

Vanadium

Answer

Silica gel

Answer

Alumina

Question 4

Zeigler process

Accepted Answer

Produces high density polyethylene

Answer

Produces low density polyethylene

Answer

Uses no catalyst

Answer

Employs very high pressure

Question 5

Boiling of water containing temporary hardness produces

Accepted Answer

CO 2

Answer

CaSO 4

Answer

CaHCO 3

Answer

None of these

Question 6

Use of hydrated lime in water treatment

Accepted Answer

All of the above

Answer

Before filtration, reduces the bacterial load on filters

Answer

After filtration, combats the corrosiveness of water due to the presence of O 2 & CO 2

Answer

Is to adjust the pH value

Question 7

Terylene is

Accepted Answer

Both A &

Answer

Same as dacron

Answer

A polyester

Answer

Neither A nor B

Question 8

The chamber process is

Accepted Answer

None of these

Answer

Preferred over contact process for producing 98 to 100% H 2 SO 4 and various oleums

Answer

Non-catalytic and operates only on pyrites

Answer

A batch process for directly producing high strength (98 to 100%) H 2 SO 4

Question 9

The catalyst used in the production of elemental sulphur from H 2 S (by oxidation-reduction) is

Accepted Answer

Alumina

Answer

Silica gel

Answer

Platinum

Answer

Nickel