chemical engineering chemical process MCQs – Page 32

Practise multiple-choice questions from chemical engineering chemical process for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering chemical process Mcqs
621. Electro deposition of metals i.e. electroplating is never done on_____________________?
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A. Non-metals

B. Alloys

C. Refractories

D. Metals

622. Sucrose content in cane sugar may be around ______________________ percent ?
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A. 95

B. 80

C. 70

D. 50

623. Free alkali in a toilet soap is _______________ that in a laundry shop ?
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A. More than

B. None of these

C. Less than

D. Same

624. Which of the following is a detergent ?
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A. Alkyl benzene sulphonate (ABS)

B. Methylene chloride

C. Fatty alcohol

D. Fatty acids

625. Deaeration of water in its treatment is necessary, as it___________________?
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A. Minimises its corrosiveness

B. Minimises its turbidity

C. None of these

D. Helps in controlling its taste and odour

626. Dacron (or Terylene) fibres as compared to nylon fibres have__________________?
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A. Poorer dyeability

B. Poorer resistance to alkalis

C. All A , B. and C.

D. Better heat & acid resistant properties

627. Paper grade bamboo contains about _______________ percent cellulose ?
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A. 5

B. 60

C. 40

D. 20

628. Which of the following is a constituent of vinegar ?
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A. Around 10% alcohol

B. Around 1% acetic acid

C. Both A. and B.

D. Neither A. nor B.

629. Absorption of SO3 in 97% H2SO4 is_______________?
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A. Not possible

B. Exothermic

C. None of these

D. Endothermic

630. Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?
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A. Low co-efficient of expansion

B. High co-efficient of expansion

C. High melting point

D. Both B. and (C)

631. Oil produced by solvent extraction________________?
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A. Has low free fatty acid content

B. Is odourless

C. Both A. & B.

D. Neither A. nor B.
632. Cement setting under water employs a/an _______________ process ?
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A. Oxidation

B. Decomposition

C. Reduction

D. Hydration
633. Sulphuric acid is mainly used in the _______________ industry ?
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A. Fertiliser

B. Steel

C. Paint

D. Paper