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Fertiliser Technology

Fertiliser Technology
Commercial fertilisers are available mostly in the form of

Lumps
Grannules
Powder
Flakes

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Fertiliser Technology
Reaction of orthophosphoric acid with phosphate rock produces

Triple superphosphate
Superphosphate
Metaphosphoric acid
Monoammonium phosphate

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Fertiliser Technology
Rock phosphate constitutes mainly of

Fluorapatite
Di-calcium phosphate
Mono-calcium phosphate
Di-ammonium phosphate

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Fertiliser Technology
Sodium tri poly phosphate (STPP) is chemically represented as

Na₂PO₄
Na₅P3O₁₀
Na₄P3O₈
Na₃P4O₆

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Fertiliser Technology
Which of the following is not a mixed fertiliser?

Calcium ammonium nitrate (CAN)
Nitrophosphate
Ammonium phosphate
None of these

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Fertiliser Technology
Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.

Endothermic
Reversible
Exothermic
Catalytic

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