Chemical Engineering - Fertiliser Technology

1. 

A nitrogenous fertiliser contains 20% N2. It could be

A. ammonium nitrate.
B. calcium ammonium nitrate (CAN).
C. urea.
D. ammonium chloride.

Answer: Option B

Explanation:

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2. 

Gas based fertiliser plants use

A. natural gas as a source of hydrogen.
B. natural gas as heating medium.
C. coal gas as a source of hydrogen.
D. coal gas as heating medium.

Answer: Option A

Explanation:

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3. 

Catalyst used in steam reforming of naphtha is

A. bauxite
B. cobalt
C. nickel oxide on alumina support
D. chromium

Answer: Option C

Explanation:

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4. 

Which of the following fertilisers contains the least percentage of nitrogen?

A. Liquid ammonia
B. Urea
C. Ammonium phosphate
D. Ammonium sulphate

Answer: Option C

Explanation:

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5. 

In the manufacture of H3 PO4 (ortho), ; strong H2 SO4 leaching wet process as compared to electric furnace process

A. uses lower grade phosphate rock.
B. requires lower capital investment in the plant.
C. produces lower purity acid.
D. is very costly.

Answer: Option C

Explanation:

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