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Fertiliser Technology

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

Triple superphosphate
Tricresyl phosphate
Superphosphate
Flourapatite

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Fertiliser Technology
Ammonium nitrate (a fertiliser) is coated with limestone powder to

Avoid the risk of explosion
Increase its nitrogen content
Add extra nutrient as fertiliser
Cut down its production cost

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Fertiliser Technology
Nitrolime is

A mixture of nitric acid and lime
A mixture of ammonium nitrate and calcium nitrate
Calcium nitrate
Calcium ammonium nitrate

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Fertiliser Technology
An increase in the NH₃/CO₂ ratio in urea manufacture results in

Decreased yield of urea
Decreased degree of conversion of NH₃ to urea
Decreased specific volume of molten mass
Increased degree of conversion of CO₂ to urea

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Fertiliser Technology
Red phosphorous is changed into white phosphorous by

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

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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

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

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