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Fertiliser Technology

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

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

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Fertiliser Technology
Fertiliser produced during soda ash manufacture by dual process is ammonium

None of these
Sulphate
Chloride
Nitrate

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Fertiliser Technology
Which of the following does not come under the category of 'secondary nutrient' for plant growth?

Oxygen
Calcium
Magnesium
Sulphur

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Fertiliser Technology
Flushing liquor used for cooling coke oven gas constitutes of

Ammoniacal liquor
Dilute HCl
Dilute H₂SO₄
K₂CO₃ solution

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Fertiliser Technology
Which of the following solvents is used for the extraction of H₃PO₄ from CaCl₂ solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?

Iso propyl alcohol
Hexane
Toluene
Butyl alcohol

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Fertiliser Technology
Chemical formula of biuret is

NH₄COONH₂
NH₂.CO.NH₂
NH₃.COO.NH₃
NH₂CONHCONH₂

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