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Fertiliser Technology

Fertiliser Technology
Main component of bone ash is

Calcium sulphate
Calcium carbonate
Sodium phosphate
Calcium phosphate

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Fertiliser Technology
Nitrogen content of a nitrogenous fertiliser is 35%. It could be

Urea
Ammonium sulphate
Calcium ammonium nitrate (CAN)
Ammonium nitrate

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Fertiliser Technology
Urea is formed only

In liquid phase
At very high temperature
In vapour phase
At very low pressure (vacuum)

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Fertiliser Technology
NPK fertiliser is a __________ fertiliser.

Mixed
Phosphatic
Complex
Nitrogenous

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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 not available
It is very costly
Its Nā‚‚ content is very low

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Fertiliser Technology
Ammonium sulphate can be produced by reacting gypsum with

Ammonium carbonate
Nitric acid
None of these
Ammonia

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