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Fertiliser Technology

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

Sulphur
Potassium
Nitrogen
Phosphorous

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Fertiliser Technology
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.

Reversible
Endothermic
Exothermic
Catalytic

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Fertiliser Technology
Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C.

500-750
250-300
950-1050
1400-1450

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Fertiliser Technology
Ammonium sulphate can be produced by reacting gypsum with

Ammonia
None of these
Ammonium carbonate
Nitric acid

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Fertiliser Technology
Temperature and pressure in urea autoclave is

400°C and 550 atm
190°C and 200 atm
200°C and 10 atm
120°C and 300 atm

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Fertiliser Technology
Catalyst used in the oxidation of ammonia is

Platinum-molybdenum
Platinum-rhodium
Cobalt-molybdenum
Platinum-beryllium

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