Chemical Engineering MCQs

6108 MCQs  (Page 500 of 611)

Attempt Chemical Engineering Quiz
With increases in pressure, the conversion of Ammonium carbamate into urea___________________?
A. Increases
B. Decreases
C. Remains unaltered
D. Can either increase or decrease depends on biuret content
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Nitric acid is produced on commercial scale in a fertiliser plant by___________________?
A. Oxidation of ammonia
B. Cano3 + h2so4 reaction
C. Passing air through high voltage electric arc
D. None of these
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In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at________________?
A. Low pressure
B. High pressure
C. Very high temperature
D. Atmospheric pressure; as the pressure has no effect on conversion
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Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
A. Ammonium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
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-10-5 fertilisers mean that they contain______________?
A. 5, 10, 5% respectively of n2, p2o5 and k2o
B. Only 5 to 10% active fertiliser constituents
D. None of these
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H4P2O7 is the chemical formula of _____________ phosphoric acid?
A. Pyro
B. Ortho
C. Meta
D. None of these
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Catalytic ammonia synthesis reaction as in Haber’s process is_________________?
A. Endothermic
B. Exothermic
C. Irreversible
D. None of these
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Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?
A. Urea
B. Can
C. Ammonium sulphate
D. Calcium cyanamide
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The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is _____________ fertiliser?
A. Nitrogenous
B. Phosphatic
C. Potassic
D. None of these
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Triple superphosphate is made by reacting phosphate rock with _____________ acid?
A. Phosphoric
B. Nitric
C. Sulphuric
D. Hydrochloric
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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