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Fertiliser Technology

Fertiliser Technology
Catalyst used in desulphurisation of naphtha is

Nickel
Silica gel
Co-Mo
Pt-Rh

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Fertiliser Technology
Potassic fertiliser is graded based on its __________ content.

KCl
K₂SO₄
K₂O
KNO₃

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Fertiliser Technology
In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable

Metaphosphoric acid
Pyrophosphoric acid
All of these
CaSO₄ .½H₂O and CaSO₄ crystals

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Fertiliser Technology
Catalytic ammonia synthesis reaction as in Haber's process is

None of these
Endothermic
Exothermic
Irreversible

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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.

82
98
68
38

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Fertiliser Technology
Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.

Endothermic
Catalytic
Exothermic
Reversible

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