A. CO2 and N2
B. CO2, H2 and N2
C. NH3 and CO
D. HNO3 and CaCO3
Raw materials for urea production are _________________? Read More »
Fertilizer Technology A. Catalytic
B. Exothermic
C. Endothermic
D. Reversible
A. 250-300
B. 500-750
C. 950-1050
D. 1400-1450
A. Dicalcium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
A phosphatic fertiliser contains 16% P2O5. It could be________________? Read More »
Fertilizer Technology A. Superphosphate
B. Triple superphosphate
C. Meta-phosphoric acid
D. Monoammonium phosphate
Reaction of ortho-phosphoric acid with phosphate rock produces _________________? Read More »
Fertilizer Technology A. Corrosive in nature
B. Toxic and harmful to some crops
C. Helpful in decomposition of urea
D. Explosive in nature
Biuret formation in urea is kept at minimum (< 1 %), because it is___________________? Read More »
Fertilizer Technology A. Nature of soil
B. Type of crop
C. pH of soil
D. None of these
Effectiveness of a fertiliser is independent of the ___________________? Read More »
Fertilizer Technology A. Ammonium sulphate
B. Nitro-phosphate
C. Superphosphate
D. Potassium nitrate
Which is the best fertiliser for paddy ? Read More »
Fertilizer Technology A. Superphosphate
B. Triple superphosphate
C. Nitrophosphate
D. Diammonium phosphate
Action of phosphoric acid on rock phosphate produces_________________? Read More »
Fertilizer Technology A. 700 – 1000
B. 300 – 450
C. 1500-1700
D. 100-200
Optimum reaction temperature in steam reforming of naphtha is ______________ °C? Read More »
Fertilizer Technology