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Fertiliser Technology

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

Ammonia
Superphosphate
Urea
Triple superphosphate

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Fertiliser Technology
Promoter used in NH₃ synthesis catalyst is

V₂O₅
U₂O₃
K₂O
SiO₃

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Fertiliser Technology
Reaction of calcium fluorapatite with sulphuric acid produces

Red phosphorous
Simple superphosphate
Ortho-phosphoric acid
Triple superphosphate

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Fertiliser Technology
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)

Use coal as filler in fertiliser
Use coal as conditioner in fertiliser
Use coal for heating purpose
Gasify coal to get hydrogen from coal gas

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Fertiliser Technology
Reaction of phosphate rock with 98% H₂SO₄ produces

Orthophosphoric acid
None of these
White phosphorous
Superphosphate

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Fertiliser Technology
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because

It is highly acidic in nature
Its nitrogen content is very less
It is a liquid at room temperature
It is hygroscopic and explosive in nature

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