chemical engineering MCQs – Page 57

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 Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs
1121. ______________ is a thermosetting plastic?
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A. Polythene

B. Teflon

C. Polyvinyl chloride

D. Bakelite
1122. Solvent extracted oil________________?
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A. Has low free fatty acid content

B. None of these

C. Has more of unsaturates

D. Is odourless

1123. Maleic anhydride is produced by catalytic oxidation of____________________?
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A. Benzene

B. Toluene

C. Ethyl alcohol

D. Naphthalene

1124. The main product of high temperature carbonisation of coal is_____________________?
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A. Ammonia

B. Phenol

C. Tar

D. Coke
1125. Which glass is usually used in optical work ?
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A. Photo-sensitive glass

B. Lead glass

C. High silica (borosilicate) glass

D. Fibre glass

1126. High purity nitrogen is used in__________________?
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A. Making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils

B. Fire fighting purposes

C. Both A. & B.

D. Neither A. nor (B)

1127. _______________ is used as a flux in the smelting of copper ore like chalcopyrite ?
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A. Silica/quartz

B. Coke breeze

C. Dolomite

D. Lime powder

1128. Carbon disulphide is mainly used in the production of______________________?
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A. Paints

B. Viscose rayon

C. Corundum

D. Plasticiser for unsaturated polyester

1129. Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?
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A. High specific gravity of mercury

B. Non-availability of high purity mercury

C. High cost of mercury

D. Pollution of water stream by mercury
1130. Zeolite is used in the ____________________ ?
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A. Hydrogenation of fatty oil as a catalyst

B. Development of exposed photographic plate

C. Glass manufacture

D. Water treatment
1131. ______________ is an ore of lead?
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A. Quartz

B. Galena

C. Chalcopyrite

D. Siderite

1132. Glycerine is a by-product of the ________________ industry ?
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A. Soap

B. Detergent

C. Oil hydrogenation

D. Paint

1133. Penicillin, an antibiotic drug was discovered by__________________?
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A. None of these

B. Alexander

C. Doctor Zhivago

D. Flaming

1134. Pig iron is produced by blast furnaces in India using mostly the iron ore named _______________?
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A. Hematite

B. Magnetite

C. Chalcopyrite

D. Siderite

1135. The manufacture of Kraft pulp is done by a/an _________________ process?
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A. Neutral

B. Alkaline

C. None of these

D. Acidic

1136. Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene ?
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A. AgO

B. ZnCl2

C. Al2O3

D. Fe2O3

1137. The most widely used coagulant for removing suspended impurities from water is__________________?
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A. Chlorine

B. Calcium sulphate

C. Bleaching powder

D. Alum
1138. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of ____________________?
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A. Nitric acid

B. Ammonium sulphate

C. Sulphuric acid

D. Hydrochloric acid

1139. Chrome tanning and vegetable tanning are done for ________________?
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A. Light & heavy leather respectively

B. Heavy & light leather respectively

C. Both light & heavy leather

D. Neither light nor heavy leather

1140. Chemical formula of BHC, which is an insecticide is__________________?
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A. C6H4Cl2

B. C6H5Cl

C. C6Cl6

D. C6H6Cl6