Chemical Engineering MCQs

6108 MCQs  (Page 510 of 611)

Attempt Chemical Engineering Quiz
In calcium ammonium nitrate (CAN) fertiliser ____________________?
A. Nitrate nitrogen is quick acting
B. Ammoniacal nitrogen is quick acting
C. Nitrate nitrogen is slower acting
D. None of these
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Optimum reaction temperature in steam reforming of naphtha is ______________ °C?
A. 700 – 1000
B. 300 – 450
C. 1500-1700
D. 100-200
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Action of phosphoric acid on rock phosphate produces_________________?
A. Superphosphate
B. Triple superphosphate
C. Nitrophosphate
D. Diammonium phosphate
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Which is the best fertiliser for paddy ?
A. Ammonium sulphate
B. Nitro-phosphate
C. Superphosphate
D. Potassium nitrate
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Effectiveness of a fertiliser is independent of the ___________________?
A. Nature of soil
B. Type of crop
C. Ph of soil
D. None of these
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Biuret formation in urea is kept at minimum (< 1 %), because it is___________________?
A. Corrosive in nature
B. Toxic and harmful to some crops
C. Helpful in decomposition of urea
D. Explosive in nature
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Reaction of ortho-phosphoric acid with phosphate rock produces _________________?
A. Superphosphate
B. Triple superphosphate
C. Meta-phosphoric acid
D. Monoammonium phosphate
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A phosphatic fertiliser contains 16% P2O5. It could be________________?
A. Dicalcium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these
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Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at ______________ °C?
A. 250-300
B. 500-750
C. 950-1050
D. 1400-1450
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Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an ______________ reaction?
A. Catalytic
B. Exothermic
C. Endothermic
D. Reversible
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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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