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Fertiliser Technology

Fertiliser Technology
P₂O₅ percentage in the phosphoric acid produced by wet process is about

70
30
10
50

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Fertiliser Technology
HPO₃ is the chemical formula of __________ phosphoric acid.

Ortho
Meta
None of these
Pyro

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Fertiliser Technology
Urea is a __________ fertiliser.

Nitrogenous
None of these
Phosphatic
Potassic

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Fertiliser Technology
Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.

N₂
KNO₃
NHO₃
NO₂

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

Phosphorous oxychloride
Phosphorous pentoxide
Calcium phosphate
Ammonium phosphate

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Fertiliser Technology
Both white phosphorous as well as red phosphorous

Reacts with hot caustic soda solution to give phosphine
Burns when heated in air
Are soluble in CS₂
All of these

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