A. Its activity declines rapidly, if heated to above 520°C
B. It decomposes ammonia
C. It gets oxidised above 500°C
D. None of these
Answer: Option A
This Question Belongs to Chemical Engineering >> Fertiliser Technology
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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