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Fertiliser Technology

Fertiliser Technology
Maximum stability of white phosphorous is at

>600°C
Very high pressure
Room temperature
Atmospheric pressure

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Fertiliser Technology
Prilling tower is found in the flowsheet for the manufacture of

Urea
Superphosphate
Triple superphosphate
Ammonia

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Fertiliser Technology
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is

Exothermic
None of these
Endothermic
Autocatalytic

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Fertiliser Technology
Reaction of anhydrous liquid ammonia with orthophosphoric acid produces

Triple superphosphate
Superphosphate
Ammonium phosphate
None of these

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

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

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Fertiliser Technology
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.

Potassic
None of these
Phosphatic
Nitrogenous

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