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Fertiliser Technology

Fertiliser Technology
Superphosphate is manufactured by reacting phosphate rock with

Acetic acid
Sulphuric acid
Aluminium chloride
None of these

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Fertiliser Technology
NPK fertiliser is a __________ fertiliser.

Nitrogenous
Complex
Phosphatic
Mixed

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Fertiliser Technology
Urea is formed only

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

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Fertiliser Technology
HPO₃ is the chemical formula of __________ phosphoric acid.

Ortho
Meta
None of these
Pyro

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Fertiliser Technology
A phosphatic fertiliser contains 16% P₂O₅. It could be

Triple superphosphate
None of these
Superphosphate
Dicalcium phosphate

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Fertiliser Technology
Maximum stability of white phosphorous is at

Atmospheric pressure
Room temperature
>600°C
Very high pressure

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