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Fertiliser Technology

Fertiliser Technology
Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium

Silicate
Bicarbonate
Carbonate
Phosphate

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Fertiliser Technology
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)

Use coal as conditioner in fertiliser
Gasify coal to get hydrogen from coal gas
Use coal as filler in fertiliser
Use coal for heating purpose

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Fertiliser Technology
Dehydration of ammonium carbamate produces

Urea
Biuret
Ammonia water
None of these

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Fertiliser Technology
In natural gas, the C/H ratio (by weight) varies in the range of

43894
20-25
15-17
44053

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Fertiliser Technology
In the manufacture of urea, the intermediate chemical formed is

Biuret
Ammonium carbamate
Ammonium carbonate
None of these

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Fertiliser Technology
A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.

Natural
Producer
Coke oven
Coal

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