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Fertiliser Technology

Fertiliser Technology
Triple superphosphate is chemically represented as

3Ca₃(PO₄)₂
Ca(H₂PO₄)₂
Ca(PO₃)₂
CaF₂.3Ca₃(PO₄)₂

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Fertiliser Technology
Reaction of cresylic acid with __________ produces tricresyl phosphate.

Ammonium phosphate
Phosphorous pentoxide
Calcium phosphate
Phosphorous oxychloride

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Fertiliser Technology
During conversion of ammonium carbamate into urea, presence of large excess of water

Increases the yield of urea
Reduces the evaporator load by diluting the urea solution
Does not affect the yield of urea
Adversely affects the yield of urea

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

Na₃P4O₆
Na₂PO₄
Na₅P3O₁₀
Na₄P3O₈

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

Superphosphate
Urea
Calcium ammonium nitrate
Ammonium sulphate

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Fertiliser Technology
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?

Potassic fertiliser
Nitrogenous fertilisers
Phosphatic fertilisers
None of these

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