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Fertiliser Technology

Fertiliser Technology
Commercial fertilisers are available mostly in the form of

Powder
Grannules
Lumps
Flakes

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Fertiliser Technology
Chemical formula of biuret is

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

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Fertiliser Technology
Temperature and pressure in ammonia converter is

200 atm, 1000°C
450 atm, 550°C
450 atm, 1000°C
450 atm, 200°C

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Fertiliser Technology
Which of the following is not a measure component necessarily to be present in fertilisers?

Phosphorous
Potassium
Nitrogen
Sulphur

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Fertiliser Technology
Conversion achieved in HNO₃ synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by

Decreasing the temperature
Decreasing the pressure
None of these
Increasing the temperature

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Fertiliser Technology
During conversion of ammonium carbamate into urea, presence of large excess of water

Reduces the evaporator load by diluting the urea solution
Increases the yield of urea
Does not affect the yield of urea
Adversely affects the yield of urea

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