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Fertiliser Technology

Fertiliser Technology
A potassic fertiliser contains 50% K₂O. It could be

Potassium sulphate
A mixture of NaCl+ KCl
Potassium chloride
None of these

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Fertiliser Technology
Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in

Non-spherical prills
Low bulk density product
Biuret formation
Substantially wet non-flowing and sticky product

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Fertiliser Technology
Reaction of nitric acid and sulphuric acid with phosphate rock produces

Tributyl phosphate
Nitrophosphate
Diammonium phosphate
Tricresyl phosphate

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

Catalytic
Endothermic
Reversible
Exothermic

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Fertiliser Technology
Raw materials for nitric acid manufacture are

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

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Fertiliser Technology
In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.

Fauser-Monte Catini
Kellog
Claude
Udhe

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