A. Nitrate nitrogen is quick acting
B. Ammoniacal nitrogen is quick acting
C. Nitrate nitrogen is slower acting
D. None of these
A. Co-Mo
B. Pt-Rh
C. Silica gel
D. Nickel
A. 1.5 : 1
B. 3.5 : 1
C. 10 : 1
D. 15 : 1
A. High pressure, low reactants concentration, high temperature
B. High pressure, low reactants concentration, low temperature
C. High pressure, high reactants concentration, low temperature
D. Low pressure, high reactants concentration, low temperature
A. Calcium
B. Magnesium
C. Sulphur
D. Oxygen
A. Urea
B. Calcium ammonium nitrate
C. Superphosphate
D. Ammonium sulphate
A. 4
B. 22
C. 58
D. 84
A. Nitrogenous fertiliser
B. Potassic fertiliser
C. Phosphatic fertiliser
D. None of these
A. The highest concentration nitrogenous fertiliser
B. The best fertiliser for paddy
C. A basic fertiliser
D. A neutral fertiliser
A. Nitric acid
B. Ammonia
C. Ammonium nitrate
D. Nitric oxide