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Fertiliser Technology

Fertiliser Technology
Catalyst used in Haber's process for ammonia production is

Nickel
Reduced iron oxide
Vanadium pentoxide
Silica gel

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Fertiliser Technology
Urea is formed only

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

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Fertiliser Technology
Superphosphate is manufactured by reacting phosphate rock with

Acetic acid
Sulphuric acid
Aluminium chloride
None of these

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Fertiliser Technology
Raw materials for nitric acid manufacture are

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

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Fertiliser Technology
Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?

CAN
Calcium cyanamide
Urea
Ammonium sulphate

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Fertiliser Technology
Reaction of anhydrous liquid ammonia with orthophosphoric acid produces

Superphosphate
Ammonium phosphate
None of these
Triple superphosphate

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