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Fertiliser Technology

Fertiliser Technology
Low grade coal is __________ to produce ammonia synthesis gas.

Liquefied
Dehydrogenated
Hydrogenated
Gasified

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Fertiliser Technology
Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it

Is in short supply
Is toxic and highly corrosive
Vaporises at normal temperature
Has a pungent smell

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Fertiliser Technology
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.

25-28
> 98
52-54
75-80

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Fertiliser Technology
Ammonium sulphate fertiliser is

A neutral fertiliser
The highest concentration nitrogenous fertiliser
A basic fertiliser
The best fertiliser for paddy

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Fertiliser Technology
Temperature and pressure in urea autoclave is

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

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Fertiliser Technology
Fertiliser produced during soda ash manufacture by dual process is ammonium

Nitrate
None of these
Chloride
Sulphate

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