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Fertiliser Technology

Fertiliser Technology
In the manufacture of urea, the intermediate chemical formed is

Ammonium carbonate
Ammonium carbamate
Biuret
None of these

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Fertiliser Technology
P₂O₅ content in triple superphosphate is about __________ percent.

85-90
15-20
70-75
42-50

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Fertiliser Technology
Phosphoric acid is produced in wet process from phosphate rock and

Dilute H₂SO₄
Concentrated H₂SO₄
Concentrated HCl
Concentrated NHO₃

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Fertiliser Technology
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.

Reversible
Endothermic
Exothermic
Catalytic

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Fertiliser Technology
Prilling tower is found in the flowsheet for the manufacture of

Superphosphate
Triple superphosphate
Ammonia
Urea

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Fertiliser Technology
Phosphorus vapour comprises of

P₂
P₃
P₄
P

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