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Fertiliser Technology

Fertiliser Technology
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.

> 98
25-28
52-54
75-80

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Fertiliser Technology
Which of the following fertilisers is used as a cattle feed?

Urea
Superphosphate
Calcium ammonium nitrate
Ammonium sulphate

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Fertiliser Technology
P₂O₅ content in superphosphate is about __________ percent.

65-70
15-20
30-35
85-90

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Fertiliser Technology
Reaction of calcium fluorapatite with sulphuric acid produces

Triple superphosphate
Red phosphorous
Simple superphosphate
Ortho-phosphoric acid

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Fertiliser Technology
__________ is the undesirable by-product produced in the manufacture of urea.

Ammonium carbamate
Biuret
Ammonium carbonate
Carbon dioxide

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Fertiliser Technology
Out of the following, N₂ content is minimum in

Ammonium chloride
Ammonium nitrate
Urea
Ammonium sulphate

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