Chemical Process MCQ Questions & Answers

1

Sea water contains about __________ ppm of bromine.

A) 5 B) 70 C) 500 D) 1700

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Answer & Solution

Answer: Option B

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2

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

A) -83 B) -183 C) -196 D) -218

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Answer & Solution

Answer: Option B

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3

Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

A) -53 B) -103 C) -183 D) -196

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Answer & Solution

Answer: Option C

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4

Parathion and Malathion are

A) Pesticides B) Plasticisers for unsaturated polysters C) Pain-relieving drugs (analgesic) D) Tranquilisers

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Answer & Solution

Answer: Option A

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5

Pasteurisation of milk means

A) Removal of fatty and albuminous substance from it B) Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics C) Inhibiting the growth of micro-organisms without killing them D) None of these

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Answer & Solution

Answer: Option B

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6

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

A) 0.14 B) 0.34 C) 0.94 D) 1.4

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Answer & Solution

Answer: Option C

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7

Pick out the true statement pertaining to water treatment.

A) Slow sand filters can remove colour completely B) Activated carbon can be used for taste & odour control without subsequent filtration C) Application of activated carbon reduces the temporary hardness of water D) Normally, the turbidity is removed by adding a coagulent prior to sedimentation

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Answer & Solution

Answer: Option D

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8

Pick out the false statement pertaining to water treatment.

A) Aeration of water is effective in CO₂ removal B) The zeolite water softening process reduces the hardness of water by not more than 50% C) Sodium sulphate or sodium carbonate do not cause hardness in water D) Water with pH value less than 7, is acidic

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Answer & Solution

Answer: Option B

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9

Phenol formaldehyde

A) Employs addition polymerisation B) Employs condensation polymerisation C) Is a monomer D) Is an abrasive material

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Answer & Solution

Answer: Option B

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10

Phenol is mainly used

A) To produce benzene B) To produce phenol formaldehyde C) To produce polyester resin D) As a plasticiser for unsaturated polyster

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Answer & Solution

Answer: Option B

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Chemical Process MCQ Questions & Answers | Chemical Engineering