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Fertiliser Technology

Fertiliser Technology
Color of nitric acid is light yellow due to the presence of

NO₂
N₂H₅
NO
NH₃

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Fertiliser Technology
Which of the following does not come under the category of 'secondary nutrient' for plant growth?

Oxygen
Magnesium
Calcium
Sulphur

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Fertiliser Technology
Lower temperature and large excess of ammonia in urea melt

Increases biuret formation
Is undersirable
Does not effect biuret formation
Decreases biuret formation

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Fertiliser Technology
Rock phosphate used for the production of phosphatic fertiliser is mined at

Bailladella (M.P.)
Kiriburu (Bihar)
Amjhor (Jharkhand)
Talchar (Orissa)

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Fertiliser Technology
Catalyst used in the oxidation of ammonia is

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

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Fertiliser Technology
Prilling tower is found in the flowsheet for the manufacture of

Ammonia
Urea
Triple superphosphate
Superphosphate

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