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Fertiliser Technology

Fertiliser Technology
The main constituent of rock phosphate is

Mono-calcium phosphate
Di-calcium phosphate
Fluorspar
None of these

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

25-28
> 98
75-80
52-54

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Fertiliser Technology
Monte catini process is a widely used process for the manufacture of

Calcium ammonium nitrate
None of these
Urea
Triple superposphate

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Fertiliser Technology
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH₃

CO₂ & H₂SO₄
CO₂ & KNO₃
HNO₃ & NH₄Cl
HNO₃ & limestone

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Fertiliser Technology
__________ is the most suitable fertiliser for paddy.

Ammonium sulphate
Potassium nitrate
Superphosphate
Urea

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Fertiliser Technology
In calcium ammonium nitrate (CAN) fertil-ser

None of these
Nitrate nitrogen is quick acting
Nitrate nitrogen is slower acting
Ammoniacal nitrogen is quick acting

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