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CHEMICAL ENGINEERING

Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
[A].

phosphoric acid.

[B].

superphosphate.

[C].

phosphorous.

[D].

triple superphosphate.

Answer: Option C

Explanation:

No answer description available for this question.

Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of Read More »

CHEMICAL ENGINEERING, Fertiliser Technology

A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.
[A].

coke oven

[B].

producer

[C].

natural

[D].

coal

Answer: Option C

Explanation:

No answer description available for this question.

A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia. Read More »

CHEMICAL ENGINEERING, Fertiliser Technology

Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
[A].

decreasing the pressure.

[B].

decreasing the temperature.

[C].

increasing the temperature.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by Read More »

CHEMICAL ENGINEERING, Fertiliser Technology

Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
[A].

nutrient supply

[B].

texture

[C].

water holding capacity

[D].

all (a), (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil. Read More »

CHEMICAL ENGINEERING, Fertiliser Technology

Liquid ammonia is not used as such a fertiliser in tropical countries like India, because

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
[A].

its N2 content is very low.

[B].

it is very costly.

[C].

it will evaporate on spraying.

[D].

it is not available.

Answer: Option C

Explanation:

No answer description available for this question.

Liquid ammonia is not used as such a fertiliser in tropical countries like India, because Read More »

CHEMICAL ENGINEERING, Fertiliser Technology

Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the
[A].

presence of an inert atmosphere.

[B].

presence of a reducing atmosphere.

[C].

absence of air.

[D].

presence of an oxidising atmosphere.

Answer: Option C

Explanation:

No answer description available for this question.

Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the Read More »

CHEMICAL ENGINEERING, Fertiliser Technology

A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.

CHEMICAL ENGINEERING, Fertiliser Technology /
Question: A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.
[A].

salt & coke

[B].

sand & coke

[C].

and coke

[D].

and sand

Answer: Option B

Explanation:

No answer description available for this question.

A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous. Read More »

CHEMICAL ENGINEERING, Fertiliser Technology