The composition of fresh feed to the high temperature, high pressure urea autoclave is
A. Excess liquid ammonia and liquefied CO2
B. Excess liquid ammonia and compressed CO2 gas
C. Liquid ammonia and excess compressed CO2
D. Compressed ammonia gas and excess compressed CO2
Answer: Option B
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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
Excess liquid Ammonia and compressed CO2 , since in the Urea autoclave at 14MPa and at temperature of 230-250 c, condensation occur where ammonia is condensed and further CO2 is compressed then again it is transfer.
Answer: b) excess liquid ammonia and compressed CO2 gas