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Fertiliser Technology

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

Tricresyl phosphate
Flourapatite
Superphosphate
Triple superphosphate

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Fertiliser Technology
During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH₃ to NO is about __________ percent.

98
38
82
68

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Fertiliser Technology
Catalyst used in Haber's process for ammonia production is

Silica gel
Nickel
Vanadium pentoxide
Reduced iron oxide

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Fertiliser Technology
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.

10
50
80
25

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Fertiliser Technology
Base suspension fertiliser essentially contains

43% N₂ and 13% P₂O₅
13% N₂ and 43% P₂O₅
43% N₂ and 13% K₂O
43% K₂O and 43% P₂O₅

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Fertiliser Technology
In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process

Produces lower purity acid
Uses lower grade phosphate rock
Is very costly
Requires lower capital investment in the plant

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