chemical engineering chemical process MCQs – Page 13

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 Review each marked answer and report any item that may be outdated or unclear.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

241. In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst___________________?
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A. All A , B. and C.

B. Has a longer life and is not poisoned by arsenic

C. Gives higher conversion efficiency

D. Handles lower SO2 content gas (7 -10% SO2), thus increasing the capital cost of the plant

242. Reaction of an alcohol with organic acid is called the ________________ reaction?
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A. Esterification

B. Saponification

C. Acidification

D. Neutralisation

243. Conversion of CO to CO2 by steam in presence of a catalyst is called__________________?
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A. Shift conversion

B. Steam gasification

C. Steam reforming

D. None of these

244. Salt is added in the kettle during soap manufacture to separate ___________________?
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A. The unsaponified fat from soap

B. The metallic soap

C. Glycerine from lye

D. Soap from lye

245. Which of the following is not a raw material used for the manufacture of ordinary glass ?
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A. Iron oxide

B. Silica

C. Soda ash

D. Limestone

246. Haemoglobin is a/an____________________?
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A. Protein

B. Amino acid

C. Biological catalyst

D. Enzyme

247. The chamber process is______________________?
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A. A batch process for directly producing high strength (98 to 100%) H2SO4

B. Preferred over contact process for producing 98 to 100% H2SO4 and various oleums

C. Non-catalytic and operates only on pyrites

D. None of these

248. Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by _____________________?
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A. Its cryogenic separation from coke oven gas

B. Iron-steam reaction

C. Steam reforming of naphtha

D. Electrolysis of water

249. Plasticisers are added to paints to______________________?
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A. Give elasticity & prevent cracking of the film

B. Increase atmospheric oxidation

C. Make it corrosion resistant

D. Make glossy surface

250. Bromides contained in hot mother liquor is treated with ______________ during manufacture of bromine from sea water ?
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A. SO2

B. Cl2

C. NH3

D. SO3

251. Styrene-butadiene-rubber (SBR) as compared to natural rubber has________________?
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A. Poorer resistance to oxidation

B. Greater amount of heat build-up under heavy loading

C. All A , B. and C.

D. Poorer tensile strength

252. Flexible foam (for mattresses) is usually made of_____________________?
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A. Polyamides

B. Silicone

C. Polyurethanes

D. PVC

253. ________________ acid is the main constituent of cotton seed oil ?
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A. Acetic

B. Palmitic

C. Oleic

D. Linoleic

254. Nylon-6 is manufactured from ______________________ ?
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A. Caprolactam

B. Hexamethylene diamine and Maleic anhydride

C. Hexamethylene diamine and Sebacic acid

D. Hexamethylene diamine and adipic acid

255. Sugar content in sugarcane on cane basis is about _______________ percent by weight ?
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A. 20 to 30

B. 1 to 5

C. 5 to 10

D. 15 to 20

256. Neoprene is chemically known as___________________?
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A. Styrene butadiene rubber (SBR)

B. Polychlorophrene

C. Polybutadiene

D. Polyurethane

257. Styrene is produced from ethyl benzene by the process of________________?
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A. Oxidation

B. Alkylation

C. Dehydrogenation

D. Dehydration

258. Kaolin is a/an _____________________?
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A. Synthetic resin

B. Artificial abrasive

C. Blue pigment

D. Refractory material

259. Phosphate rock is a raw material for the manufacture of____________________?
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A. Phosphorous

B. All A , B. and C

C. Superphosphates

D. Phosphoric acid

260. ____________________ is a thermosetting plastic ?
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A. Polythene

B. Epoxy polymer

C. P.V.C.

D. Polystyrene

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