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Fertiliser Technology

Fertiliser Technology
Nitrolime is chemically known as

None of these
Calcium nitrate
Calcium ammonium nitrate (CAN)
Ammonium nitrate

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Fertiliser Technology
Urea is formed only

At very high temperature
In vapour phase
In liquid phase
At very low pressure (vacuum)

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

Cracking of natural gas
H? separation from coke oven gas
Steam reforming of naphtha
Electrolysis of water

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Fertiliser Technology
Red phosphorous is changed into white phosphorous by

Vaporisation followed by condensation
None of these
Heating in presence of light
Melting under pressure

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Fertiliser Technology
Monte catini process is a widely used process for the manufacture of

None of these
Triple superposphate
Calcium ammonium nitrate
Urea

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Fertiliser Technology
In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process

Produces lower purity acid
Requires lower capital investment in the plant
Is very costly
Uses lower grade phosphate rock

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