Which is the best fertiliser for paddy?
A. Ammonium sulphate
B. Nitro-phosphate
C. Superphosphate
D. Potassium nitrate
Answer: Option A
This Question Belongs to Chemical Engineering >> Fertiliser Technology
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Heating of orthophosphoric acid to about 900°C, produces
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C. No change in it
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C. It will evaporate on spraying
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A. Urea
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C. Ammonium sulphate
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