Chemical Engineering MCQs

6108 MCQs  (Page 517 of 611)

Attempt Chemical Engineering Quiz
Chemical formula of meta-phosphoric acid is ___________________?
A. H3po4
B. H4p2o7
C. Hpo3
D. Same as that of pyrophosphoric acid
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Gas based fertiliser plants use_________________?
A. Natural gas as a source of hydrogen
B. Natural gas as heating medium
C. Coal gas as a source of hydrogen
D. Coal gas as heating medium
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Main constituent of phosphate rock is_____________________?
A. Ammonium phosphate
B. Flour apatite
C. Calcium fluoride
D. Calcium phosphate
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Low grade coal is ______________ to produce ammonia synthesis gas?
A. Hydrogenated
B. Liquefied
C. Gasified
D. Dehydrogenated
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Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?
A. Exothermic
B. Endothermic
C. Autocatalytic
D. None of these
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Catalyst used in steam reforming of naphtha is ___________________?
A. Bauxite
B. Cobalt
C. Nickel oxide on alumina support
D. Chromium
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Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
A. Phosphoric acid
B. Ammonium phosphate
C. Phosphorous
D. Superphosphate
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Which of the following fertilisers contains the least percentage of nitrogen ?
A. Liquid ammonia
B. Urea
C. Ammonium phosphate
D. Ammonium sulphate
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pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
A. 4-5
B. 7-8
C. 9-10
D. 12-13
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Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it___________________?
A. Has a pungent smell
B. Vaporises at normal temperature
C. Is toxic and highly corrosive
D. Is in short supply
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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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