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Fertiliser Technology

Fertiliser Technology
The main constituent of rock phosphate is

None of these
Fluorspar
Mono-calcium phosphate
Di-calcium phosphate

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Fertiliser Technology
Optimum reaction temperature in steam reforming of naphtha is __________ °C.

700 - 1000
1500-1700
300 - 450
100-200

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Fertiliser Technology
Potassic fertilisers do not promote the development of

Sugar of fruits & vegetables
Stems & leaves during early stage of plant growth
Starches of potatoes & grains
Fibrous materials of plants

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Fertiliser Technology
Maximum nitrogen percentage is in

Calcium ammonium nitrate
Ammonium sulphate
Urea
Liquid ammonia

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Fertiliser Technology
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.

Le-chatlier's
Haber's
Du-pont's
Stengel

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Fertiliser Technology
Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of

Triple superphosphate
Superphosphate
Phosphorous
Phosphoric acid

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