Chemical Process

Question: DDT stands for
[A].

diethyl-diphenyl-trichloromethane.

[B].

dichloro-diphenyl-trichloromethane.

[C].

diphenyl-dichloro-trichloromethane.

[D].

dichloro-diphenyl-trichloroethane.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Fumigant insecticides
[A].

kill insects, when they eat it.

[B].

emit poisonous vapour.

[C].

are absorbed throughout the plant.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Acrylonitrile is mainly used in the __________ industry.
[A].

polymer

[B].

printing

[C].

dyeing

[D].

photographic

Answer: Option C

Explanation:

No answer description available for this question.

Question: Kopper-Totzek coal gasifier
[A].

can give ammonia synthesis gas (H2 + N2).

[B].

is a moving bed reactor.

[C].

cannot use coking coal.

[D].

operate at very high pressure.

Answer: Option A

Explanation:

No answer description available for this question.

Question: The catalyst used in shift converter is
[A].

nickel

[B].

vanadium

[C].

silica gel

[D].

alumina

Answer: Option A

Explanation:

No answer description available for this question.

Question: In the Lurgi coal gasifier
[A].

coking coals cannot be used.

[B].

low carbon conversion efficiency is achieved.

[C].

entrainment of solids is higher.

[D].

large quantity of coal can be processed.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Lurgi coal gasifier is a pressurised __________ bed reactor.
[A].

moving

[B].

fixed

[C].

fluidised

[D].

entrained

Answer: Option A

Explanation:

No answer description available for this question.

Question: Coke oven gas consists mainly of
[A].

H2, & CH4

[B].

CO, & CO2

[C].

H2, & CO

[D].

CH4, & CO

Answer: Option A

Explanation:

No answer description available for this question.

Question: A good quality coal should have
[A].

low fusion point of ash

[B].

high ash content

[C].

high sulphur content

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Low temperature carbonisation of coal takes place at __________ °C.
[A].

300

[B].

1100

[C].

700

[D].

900

Answer: Option C

Explanation:

No answer description available for this question.