Chemical Process MCQ Questions & Answers

1

Main product in calcium carbide-water reaction is

A) Ca(OH)₂ B) C₂H₂ C) CO₂ D) CaCO₃

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Answer & Solution

Answer: Option B

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2

CaCl(OCl) is the chemical formula of

A) Hypo B) Bleaching powder C) Plaster of paris D) Aqua regia

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Answer & Solution

Answer: Option B

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3

Carboxymethyl cellulose (CMC) is added in detergents to

A) Prevent redeposition of soil on cleaned surface B) Act as optical brightening agent C) Inhibit corrosion in washing machines made of aluminium D) None of these

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Answer & Solution

Answer: Option A

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4

Which of the following is used as a coagulant in water treatment?

A) Chloramine B) Chlorine C) Ferrous sulphate D) Hydrogen peroxide

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Answer & Solution

Answer: Option C

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5

Coal tar is used as a

A) Binding material for coal briquettes B) Fuel in rotary kiln C) Binder in making carbon electrodes D) All of the above

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Answer & Solution

Answer: Option D

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6

The process involved in converting rubber into a thin sheet or coating it on fabric is called

A) Extrusion B) Mastication C) Calendering D) Valcanisation

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Answer & Solution

Answer: Option C

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7

Raw material used in alcohol distilleries in India is

A) Molasses B) Benzol C) Methylated spirit D) None of these

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Answer & Solution

Answer: Option A

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8

Fermentation of molasses to produce ethyl alcohol is done at __________ °C

A) 20 - 30 B) < - 5 C) 100 - 150 D) 250 - 300

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Answer & Solution

Answer: Option A

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9

The end bleaching agent used to move last traces of colour bodies from the pulp is

A) Chlorine dioxide (ClO₂) B) MgO C) SO₂ gas D) Mercaptans

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Answer & Solution

Answer: Option A

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10

Styrene-butadiene-rubber (SBR) as compared to natural rubber has

A) Poorer tensile strength B) Poorer resistance to oxidation C) Greater amount of heat build-up under heavy loading D) All of the above

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Answer & Solution

Answer: Option D

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Chemical Process MCQ Questions & Answers | Chemical Engineering