Chemical Engineering - Fertiliser Technology

26. 

C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

A. 2
B. 6
C. 13
D. 20

Answer: Option B

Explanation:

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27. 

Raw materials for urea production are

A. CO2 and N2
B. CO2, H2 and N2
C. NH3 and CO
D. HNO3 and CaCO3

Answer: Option B

Explanation:

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28. 

Which of the following is not a mixed fertiliser ?

A. Nitrophosphate
B. Calcium ammonium nitrate (CAN)
C. Ammonium phosphate
D. None of these

Answer: Option B

Explanation:

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29. 

Chemical formula of metaphosphoric acid is

A. H3PO4
B. H4P2O7
C. HPO3
D. same as that of pyrophosphoric acid

Answer: Option C

Explanation:

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30. 

Low grade coal is __________ to produce ammonia synthesis gas.

A. hydrogenated
B. liquefied
C. gasified
D. dehydrogenated

Answer: Option C

Explanation:

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