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Fertiliser Technology

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

None of these
Dicalcium phosphate
Superphosphate
Triple superphosphate

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Fertiliser Technology
Dehydration of ammonium carbamate produces

Biuret
Ammonia water
Urea
None of these

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Fertiliser Technology
NPK fertiliser is a __________ fertiliser.

Phosphatic
Nitrogenous
Mixed
Complex

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Fertiliser Technology
Which is the best fertiliser for paddy?

Potassium nitrate
Nitro-phosphate
Ammonium sulphate
Superphosphate

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Fertiliser Technology
Urea is formed only

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

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Fertiliser Technology
Heating of orthophosphoric acid to about 900°C, produces

None of these
Pyrophosphoric acid
No change in it
Metaphosphoric acid

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