Chemical Engineering - Fertiliser Technology - Discussion


Pick out the wrong statement.

[A]. Dehydration of ammonium carbamate to produce urea is endothermic.
[B]. Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable.
[C]. Gypsum (CaSO4. 2H2O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid.
[D]. Phosphate rock when reacted with dilute H2SO4 produces superphosphate.

Answer: Option B


No answer description available for this question.

Vish said: (Mar 18, 2015)  
Because direct use of liquid ammonia as a fertilizer in tropical countries will result in the vaporization of ammonia on spraying.

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