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Question: Low grade coal is __________ to produce ammonia synthesis gas.
[A].

hydrogenated

[B].

liquefied

[C].

gasified

[D].

dehydrogenated

Answer: Option C

Explanation:

No answer description available for this question.

Question: In natural gas, the C/H ratio (by weight) varies in the range of
[A].

3-4

[B].

8-10

[C].

15-17

[D].

20-25

Answer: Option A

Explanation:

No answer description available for this question.

Question: Ammonium sulphate can be produced by reacting gypsum with
[A].

ammonia

[B].

ammonium carbonate

[C].

nitric acid

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: H4P2O7 is the chemical formula of __________ phosphoric acid.
[A].

pyro

[B].

ortho

[C].

meta

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: H3PO4 is the chemical formula of __________ phosphoric acid.
[A].

pyro

[B].

ortho

[C].

meta

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
[A].

50-80

[B].

250-400

[C].

1000-1200

[D].

800-900

Answer: Option B

Explanation:

No answer description available for this question.

Question: Heating a mixture of phosphate rock, coke and sand in an electric furnace produces
[A].

phosphoric acid

[B].

ammonium phosphate

[C].

phosphorous

[D].

superphosphate

Answer: Option C

Explanation:

No answer description available for this question.

Question: Nitrogen content of a nitrogenous fertiliser is 35%. It could be
[A].

urea

[B].

ammonium nitrate

[C].

calcium ammonium nitrate (CAN)

[D].

ammonium sulphate

Answer: Option B

Explanation:

No answer description available for this question.

Question: Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
[A].

reversible

[B].

catalytic

[C].

exothermic

[D].

endothermic

Answer: Option D

Explanation:

No answer description available for this question.

Question: Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction.
[A].

catalytic

[B].

exothermic

[C].

endothermic

[D].

reversible

Answer: Option B

Explanation:

No answer description available for this question.