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Fertiliser Technology

Fertiliser Technology
The main constituent of rock phosphate is

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

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Fertiliser Technology
Fertiliser plants get their N₂ requirements

By fractionation of liquified air
From producer gas
By dissociating oxides of nitrogen
From coal gas (coke oven gas)

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Fertiliser Technology
Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?

Ammonium sulphate
Urea
CAN
Calcium cyanamide

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Fertiliser Technology
HPO₃ is the chemical formula of __________ phosphoric acid.

None of these
Ortho
Meta
Pyro

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Fertiliser Technology
Raw materials for nitric acid manufacture are

Anhydrous ammonia and air
Wet ammonia, air and water
Hydrogen peroxide, air and water
Anhydrous ammonia, air and water

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Fertiliser Technology
H₄P₂O₇ is the chemical formula of __________ phosphoric acid.

None of these
Pyro
Ortho
Meta

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