A. Endothermic
B. Exothermic
C. Irreversible
D. None of these
Catalytic ammonia synthesis reaction as in Haber’s process is_________________? Read More »
Fertilizer Technology A. Pyro
B. Ortho
C. Meta
D. None of these
H4P2O7 is the chemical formula of _____________ phosphoric acid? Read More »
Fertilizer Technology 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
-10-5 fertilisers mean that they contain______________? Read More »
Fertilizer Technology A. Ammonium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
A. Low pressure
B. High pressure
C. Very high temperature
D. Atmospheric pressure; as the pressure has no effect on conversion
A. Oxidation of ammonia
B. CaNO3 + H2SO4 reaction
C. Passing air through high voltage electric arc
D. None of these
Nitric acid is produced on commercial scale in a fertiliser plant by___________________? Read More »
Fertilizer Technology A. Increases
B. Decreases
C. Remains unaltered
D. Can either increase or decrease depends on biuret content
A. 10
B. 46
C. 80
D. 94
Nitrogen content of urea is about _____________ percent ? Read More »
Fertilizer Technology 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
Plant tranquillisers___________________? Read More »
Fertilizer Technology A. Hydrogen peroxide, air and water
B. Anhydrous ammonia and air
C. Anhydrous ammonia, air and water
D. Wet ammonia, air and water
Raw materials for nitric acid manufacture are___________________? Read More »
Fertilizer Technology