Fertiliser Technology - Chemical Engineering Questions and Answers

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Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis?

H? separation from coke oven gas

Steam reforming of naphtha

Cracking of natural gas

Electrolysis of water

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

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Fauser Monte Catini converter is used for

Ammonia synthesis (e.g. at FCI Sindri)

Methanation of CO and CO₂

Shift conversion (i.e. CO to CO₂)

None of these

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Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.

Catalytic

Endothermic

Exothermic

Autocatalytic

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P₂O₅ content in triple superphosphate is about __________ percent.

42-50

15-20

85-90

70-75

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Yield of elemental phosphorous from rock phosphate is about __________ percent.

1-2

15-25

40-45

60-65

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P₂O₅ content in superphosphate is about __________ percent.

30-35

15-20

65-70

85-90

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Triple superphosphate is chemically represented as

CaF₂.3Ca₃(PO₄)₂

3Ca₃(PO₄)₂

Ca(PO₃)₂

Ca(H₂PO₄)₂

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Tricresyl phosphate is chemically represented as

(CH₃ C₆ H₄)₃ PO₄

Ca₁₀(PO₄)3F₆

(NH₄)₂HPO₄

NH₄H₂PO₄