Promoter used in NH3 synthesis catalyst is__________________?
Promoter used in NH3 synthesis catalyst is__________________?
A. K2O
B. SiO3
C. V2O5
D. U2O3
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Catalytic ammonia synthesis reaction as in Haber’s process is_________________?
Catalytic ammonia synthesis reaction as in Haber’s process is_________________?A. Endothermic
B. Exothermic
C. Irreversible
D. None of theseWhich of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?A. Nitrogenous fertilisers
B. Phosphatic fertilisers
C. Potassic fertiliser
D. None of theseNPK means a ______________ fertiliser?
NPK means a ______________ fertiliser?A. Mixed
B. Potassic
C. Liquid
D. SolidReaction of ______________ acid with phosphate rock produces superphosphates?
Reaction of ______________ acid with phosphate rock produces superphosphates?A. Hydrochloric
B. Sulphuric
C. Nitric
D. PhosphoricLiquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?A. Exothermic
B. Endothermic
C. Autocatalytic
D. None of theseGas based fertiliser plants use_________________?
Gas based fertiliser plants use_________________?A. Natural gas as a source of hydrogen
B. Natural gas as heating medium
C. Coal gas as a source of hydrogen
D. Coal gas as heating medium