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Fertiliser Technology

Fertiliser Technology
Catalyst used in Haber's process for ammonia production is

Nickel
Reduced iron oxide
Silica gel
Vanadium pentoxide

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Fertiliser Technology
Main constituent of phosphate rock is

Flour apatite
Ammonium phosphate
Calcium phosphate
Calcium fluoride

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Fertiliser Technology
Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C.

1400-1450
250-300
950-1050
500-750

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Fertiliser Technology
Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by

Cryogenic separation of hydrogen from coke oven gas
All of these
Steam reforming of naphtha and cracking of natural gas
Electrolysis of water

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Fertiliser Technology
Low grade coal is __________ to produce ammonia synthesis gas.

Dehydrogenated
Gasified
Liquefied
Hydrogenated

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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
None of these
Nitrogeneous fertiliser
Potassic fertiliser

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