Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?
A. H2 separation from coke oven gas
B. Steam reforming of naphtha
C. Cracking of natural gas
D. Electrolysis of water
Answer: Option D
A. H2 separation from coke oven gas
B. Steam reforming of naphtha
C. Cracking of natural gas
D. Electrolysis of water
Answer: Option D
Heating of orthophosphoric acid to about 900°C, produces
A. Metaphosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these
A potassic fertiliser contains 50% K2O. It could be
A. Potassium sulphate
B. Potassium chloride
C. A mixture of NaCl + KCl
D. None of these
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
A. Urea
B. CAN
C. Ammonium sulphate
D. Calcium cyanamide
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