Dehydration of ammonium carbamate (to produce urea) is a/an _____________ reaction?

A. Calcium nitrate
B. Calcium ammonium nitrate (CAN)
C. Urea
D. Ammonium sulphate

A. Calcium nitrate
B. Calcium ammonium nitrate
C. A mixture of nitric acid and lime
D. A mixture of ammonium nitrate and calcium nitrate

A. K2O
B. SiO3
C. V2O5
D. U2O3

A. 5, 10, 5% respectively of N2, P2O5 and K2O
B. Only 5 to 10% active fertiliser constituents
C. 5 to 10% filler & carrier of soil conditioners
D. None of these

A. Superphosphate
B. Triple superphosphate
C. Nitrophosphate
D. Diammonium phosphate

A. Nutrient supply
B. Texture
C. Water holding capacity
D. All A., B. and C.