chemical engineering MCQs – Page 56

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 Review each marked answer and report any item that may be outdated or unclear.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
1101. Reaction of an alcohol with organic acid is called the ________________ reaction?
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A. Acidification

B. Neutralisation

C. Saponification

D. Esterification
1102. Widely used method for the conditioning of boiler feed water is the ___________________?
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A. Sequestration

B. Coagulation

C. Cold lime process

D. Hot-lime soda process
1103. CaCl(OCl) is the chemical formula of___________________?
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A. Plaster of Paris

B. Aqua regia

C. Bleaching powder

D. Hypo

1104. Sucrose is a__________________?
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A. Disaccharide

B. Monosaccharide

C. Polysaccharide

D. None of these

1105. Sugar content in sugarcane on cane basis is about _______________ percent by weight ?
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A. 1 to 5

B. 15 to 20

C. 5 to 10

D. 20 to 30

1106. Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of____________________?
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A. Trichloroethylene

B. Parathion

C. Perchloroethylene

D. Methanol

1107. Contact process of sulphuric acid manufacture ____________________?
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A. Yields acid of higher concentration than chamber process

B. Eliminates absorber

C. Yields acids of lower concentration than chamber process

D. Is obsolete

1108. Plasticisers are added to synthetic plastics to____________________?
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A. All A, B. and C.

B. Develop new improved properties not present in the original resins

C. Improve workability during fabrication

D. Impart flexibility

1109. Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?
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A. Copper

B. Arsenic

C. Manganese

D. Chromium

1110. Which of the following is the second major component of cement ?
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A. Fe2O3

B. Al2O3

C. CaO

D. SiO2
1111. Hydrogenation of oil takes place in a/an ____________________ reactor ?
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A. Trickle bed

B. Plug flow

C. Autothermal

D. None of these

1112. ____________________ process is used for producing soda ash?
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A. Chamber

B. Tromp

C. Chance

D. Solvay
1113. Antibiotic____________________?
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A. Is used as a pain reliever

B. Inhibits/destroys the growth of microorganisms

C. Is an anaesthetic

D. Is an antimalarial

1114. ________________ acid is an unsaturated fatty acid ?
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A. Palmitic

B. Oleic

C. Oxalic

D. Stearic

1115. Hydrophilic group of a soap or detergent solution is____________________?
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A. None of these

B. Soil loving

C. Water loving

D. Water hating

1116. ____________ are used as corrosion inhibitor for iron & steel in aqueous solutions ?
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A. Bi-carbonates

B. Phosphates

C. Chromates

D. Sulphates

1117. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an ______________ detergent ?
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A. Anionic

B. Cationic

C. Semi polar

D. Amphoteric

1118. Nitric acid is not used in the manufacture of______________________?
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A. Explosives

B. Aqua regia

C. Detergents

D. Fertilisers

1119. Frasch process is for______________________?
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A. Making oxygen

B. Producing helium

C. Making nitrogen

D. Mining sulphur
1120. The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?
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A. Ultraviolet light

B. Dilute H2SO4

C. None of these

D. Oleum