Catalytic ammonia synthesis reaction as in Haber’s process is_________________?
A. Endothermic
B. Exothermic
C. Irreversible
D. None of these
Fertilizer Technology
H4P2O7 is the chemical formula of _____________ phosphoric acid?
H4P2O7 is the chemical formula of _____________ phosphoric acid?
A. Pyro
B. Ortho
C. Meta
D. None of these
-10-5 fertilisers mean that they contain______________?
-10-5 fertilisers mean that they contain______________?
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
Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
A. Ammonium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at________________?
In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at________________?
A. Low pressure
B. High pressure
C. Very high temperature
D. Atmospheric pressure; as the pressure has no effect on conversion
Nitric acid is produced on commercial scale in a fertiliser plant by___________________?
Nitric acid is produced on commercial scale in a fertiliser plant by___________________?
A. Oxidation of ammonia
B. CaNO3 + H2SO4 reaction
C. Passing air through high voltage electric arc
D. None of these
With increases in pressure, the conversion of Ammonium carbamate into urea___________________?
With increases in pressure, the conversion of Ammonium carbamate into urea___________________?
A. Increases
B. Decreases
C. Remains unaltered
D. Can either increase or decrease depends on biuret content
Nitrogen content of urea is about _____________ percent ?
Nitrogen content of urea is about _____________ percent ?
A. 10
B. 46
C. 80
D. 94
Plant tranquillisers___________________?
Plant tranquillisers___________________?
A. Hold back stem growth and halt plants at a desired height
B. Cause early maturation of plants
C. Accelerate ripening of food and grain
D. Produce seedless fruit
Raw materials for nitric acid manufacture are___________________?
Raw materials for nitric acid manufacture are___________________?
A. Hydrogen peroxide, air and water
B. Anhydrous ammonia and air
C. Anhydrous ammonia, air and water
D. Wet ammonia, air and water