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Fertiliser Technology

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

Ammonium carbamate
Biuret
None of these
Ammonium carbonate

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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.

75-80
25-28
52-54
> 98

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

30
10
50
70

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Fertiliser Technology
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.

Phosphatic
Potassic
Nitrogenous
None of these

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Fertiliser Technology
__________ catalyst is used in the production of urea from CO₂ and NH₃.

Alumina
Vanadium pentoxide
Nickel
No

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Fertiliser Technology
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.

Either A or B
Hydrochloric
Neither A nor B
Sulphuric

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