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Fertiliser Technology

Fertiliser Technology
Promoter used in NH₃ synthesis catalyst is

U₂O₃
K₂O
V₂O₅
SiO₃

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Fertiliser Technology
Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?

Phosphatic fertiliser
Potassic fertiliser
None of these
Nitrogeneous fertiliser

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Fertiliser Technology
Ammonium phosphate is a __________ fertiliser.

Mixed
Nitrogenous
Phosphatic
Complex

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Fertiliser Technology
Triple superphosphate is made by reacting phosphate rock with __________ acid.

Phosphoric
Hydrochloric
Nitric
Sulphuric

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Fertiliser Technology
CO₂ present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in

Slaked lime
Mono-ethanolamine (MEA)
Ammoniacal liquor
Methyl-Ethyl Ketone (MEK)

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Fertiliser Technology
Liquid ammonia is not used as such a fertiliser in tropical countries like India, because

It will evaporate on spraying
It is not available
Its N₂ content is very low
It is very costly

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