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Fertiliser Technology

Fertiliser Technology
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.

Haber's
Stengel
Du-pont's
Le-chatlier's

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Fertiliser Technology
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

High pressure
Atmospheric pressure; as the pressure has no effect on conversion
Very high temperature
Low pressure

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Fertiliser Technology
Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.

Water holding capacity
Texture
All of these
Nutrient supply

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Fertiliser Technology
Liquid ammonia is not used as such a fertiliser in tropical countries like India, because

It will evaporate on spraying
It is very costly
It is not available
Its N₂ content is very low

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Fertiliser Technology
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.

60
100
30
95

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Fertiliser Technology
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?

None of these
Nitrogenous fertilisers
Potassic fertiliser
Phosphatic fertilisers

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