FERTILISER TECHNOLOGY QUIZ

Main component of bone ash is

Sodium phosphate

Calcium phosphate

Calcium sulphate

Calcium carbonate

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Ammonia synthesis gas is produced from natural gas by

Partial oxidation

Hydrogenation

Steam reforming

Thermal cracking

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Biuret formation in urea is kept at minimum (< 1 %), because it is

Corrosive in nature

Toxic and harmful to some crops

Helpful in decomposition of urea

Explosive in nature

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Nitrogenous fertiliser is required

None of these

During the early stage of growth to promote development of stem and leaves

For accelerating fruit formation in later stage of growth

To lessen the effect of excessive potash application

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Which is the best fertiliser for paddy?

Potassium nitrate

Ammonium sulphate

Superphosphate

Nitro-phosphate

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Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?

Steam reforming of naphtha

Electrolysis of water

H? separation from coke oven gas

Cracking of natural gas

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Ammonium sulphate fertiliser is

A basic fertiliser

The best fertiliser for paddy

A neutral fertiliser

The highest concentration nitrogenous fertiliser

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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?

Butyl alcohol

Hexane

Iso propyl alcohol

Toluene

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Which is a catalyst promoter used in catalytic ammonia synthesis reaction?

K₂O

Cr₂O₃

Al₂O₃

MnO

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(CH₃ C₆ H₄)₃ PO₄ is the chemical formula of

Flourapatite

Superphosphate

Triple superphosphate

Tricresyl phosphate

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