Chemical Engineering MCQs

6108 MCQs  (Page 506 of 611)

Attempt Chemical Engineering Quiz
Dehydration of ammonium carbamate produces__________________?
A. Urea
B. Biuret
C. Ammonia water
D. None of these
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Calcium ammonium nitrate (CAN) is__________________?
A. A mixed fertiliser
B. A straight fertiliser
C. A complex fertiliser
D. Not a fertiliser; it is an explosive
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NPK means a ______________ fertiliser?
A. Mixed
B. Potassic
C. Liquid
D. Solid
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Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because______________________?
A. It is hygroscopic and explosive in nature
B. It is highly acidic in nature
C. It is a liquid at room temperature
D. Its nitrogen content is very less
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Ammonium sulphate can be produced by reacting gypsum with____________________?
A. Ammonia
B. Ammonium carbonate
C. Nitric acid
D. None of these
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Out of the following, N2 content is minimum in_____________________?
A. Urea
B. Ammonium nitrate
C. Ammonium sulphate
D. Ammonium chloride
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The optimum size of the ammonia plant is ______________ tons/day?
A. 10
B. 100
C. 1000
D. 1000
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Phosphoric acid is produced in wet process from phosphate rock and____________________?
A. Dilute h2so4
B. Concentrated h2so4
C. Concentrated nho3
D. Concentrated hcl
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Iron is not used alone as a catalyst in ammonia synthesis, because___________________?
A. Its activity declines rapidly, if heated to above 520°c
B. It decomposes ammonia
C. It gets oxidised above 500°c
D. None of these
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Rock phosphate constitutes mainly of___________________?
A. Fluorapatite
B. Di-calcium phosphate
C. Mono-calcium phosphate
D. Di-ammonium phosphate
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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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