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Fertiliser Technology

Fertiliser Technology
NPK fertiliser is a __________ fertiliser.

Nitrogenous
Phosphatic
Mixed
Complex

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

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

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Fertiliser Technology
Sodium tri poly phosphate (STPP) is chemically represented as

Na₅P3O₁₀
Na₄P3O₈
Na₂PO₄
Na₃P4O₆

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

Carbonate
Bicarbonate
Silicate
Phosphate

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Fertiliser Technology
(CH₃ C₆ H₄)₃ PO₄ is the chemical formula of

Superphosphate
Flourapatite
Tricresyl phosphate
Triple superphosphate

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Fertiliser Technology
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done.

Increased cost of equipment
Increased biuret formation
High corrosion rate
All of these

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