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Fertiliser Technology

Fertiliser Technology
A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.

And sand
Sand & coke
Salt & coke
And coke

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Fertiliser Technology
Catalyst used in the oxidation of ammonia is

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

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Fertiliser Technology
Triple superphosphate which contains about 46% Pā‚‚Oā‚… is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.

52-54
> 98
75-80
25-28

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Fertiliser Technology
Main constituent of phosphate rock is

Calcium fluoride
Calcium phosphate
Flour apatite
Ammonium phosphate

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Fertiliser Technology
A nitrogenous fertiliser contains 20% Nā‚‚. It could be

Ammonium chloride
Urea
Calcium ammonium nitrate (CAN)
Ammonium nitrate

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Fertiliser Technology
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces

Superphosphate
Phosphorous
Phosphoric acid
Ammonium phosphate

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