Fertilizer Technology MCQs

186 MCQs  — Chemical Engineering MCQs  (Page 6 of 19)

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Reaction of ______________ acid with phosphate rock produces superphosphates?
A. Hydrochloric
B. Sulphuric
C. Nitric
D. Phosphoric
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HPO3 is the chemical formula of ______________ phosphoric acid?
A. Pyro
B. Ortho
C. Meta
D. None of these
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(CH3 C6 H4)3 PO4 is the chemical formula of__________________?
A. Triple superphosphate
B. Tricresyl phosphate
C. Fluorapatite
D. Superphosphate
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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?
A. 38
B. 68
C. 82
D. 98
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Ammonia synthesis reaction is______________________?
A. Exothermic
B. Endothermic
C. Autocatalytic
D. None of these
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Nitrogenous fertiliser is required__________________?
A. During the early stage of growth to promote development of stem and leaves
B. For accelerating fruit formation in later stage of growth
C. To lessen the effect of excessive potash application
D. None of these
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Commercial fertilisers are available mostly in the form of__________________?
A. Powder
B. Granules
C. Lumps
D. Flakes
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A fertiliser plant is classified as a gas based fertiliser plant, when it uses ______________ gas as a source of hydrogen for the manufacture of ammonia?
A. Coke oven
B. Producer
C. Natural
D. Coal
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Catalyst used in ammonia synthesis uses ____________ as a promoter?
A. Pt
B. K2o
C. Al2o3
D. Ni
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Which is the most suitable fertiliser for paddy ?
A. Can
B. Ammonium sulphate
C. Ammonium nitrate
D. Superphosphate
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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