chemical engineering chemical process MCQs – Page 7

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 Review each marked answer and report any item that may be outdated or unclear.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
121. Frasch process is for______________________?
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A. Making oxygen

B. Producing helium

C. Mining sulphur

D. Making nitrogen

122. Sulphuric acid completely saturated with sulphur trioxide is called_________________?
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A. Oleum

B. Concentrated sulphuric acid

C. Dilute sulphuric acid

D. Sulphurous acid

123. Which allotrope of sulphur is insoluble in carbon disulphide ?
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A. Plastic sulphur

B. Rhombic sulphur

C. Milk of sulphur

D. Monoclinic sulphur

124. Esterification reaction___________________?
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A. All A, B. and C.

B. Is a reaction between an alcohol and an organic acid

C. Is reversible

D. Produces soap

125. ____________________ process is used for producing soda ash?
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A. Chance

B. Tromp

C. Chamber

D. Solvay
126. The combustion reaction, C + O2 = CO2, is__________________?
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A. Endothermic

B. None of these

C. Exothermic

D. Autocatalytic

127. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to__________________?
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A. Flocculate the impurities

B. Facilitate fast filtration

C. Both A. and B.

D. Neither A. nor B.

128. Glass is__________________?
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A. Subjected to galvanising

B. All A , B. and C.

C. Mainly CaO

D. A super cooled liquid
129. Bitterns is a/an_________________?
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A. Starting material for the production of iodine

B. By-product of chlor-alkali industry

C. None of these

D. Unsaturated fat

130. Fatty material used in soap making is _______________________?
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A. Detergents

B. Fatty acid

C. Fatty alcohols

D. Tallow
131. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like_________________?
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A. High cost

B. All A, B. and C.

C. Fragile nature

D. Easy poisoning tendency

132. BHC (Benzene hexachloride) is made by the chlorination of benzene_____________________?
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A. Which is a substitution reaction

B. Which is an addition reaction

C. In presence of sunlight

D. In absolute dark

133. Chloramines are used in water treatment for_____________________?
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A. Disinfection and control of taste & odour

B. Removing turbidity

C. Control of bacteria

D. Corrosion control

134. Basic oxide is absent in ___________________ glass?
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A. Flint

B. Pyrex

C. All A, B. & C

D. Quartz
135. ____________ are used as corrosion inhibitor for iron & steel in aqueous solutions ?
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A. Phosphates

B. Bi-carbonates

C. Chromates

D. Sulphates

136. Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?
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A. Calcium perchlorate

B. Soda lime

C. Slaked lime

D. None of these

137. Bio-degradable detergents ___________________?
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A. Should not be used as it spoils the cloth

B. Pose problem in sewerage plant

C. Have an isoparaffinic structure

D. Can be readily oxidised
138. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about _____________ C ?
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A. -53

B. -103

C. -196

D. -183
139. Permanent hardness of water can be removed by____________________?
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A. Passing it through cation & anion exchangers

B. All (A), B. and (C)

C. Simply boiling

D. Adding alum

140. Which of the following is not produced commercially from sea water ?
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A. Common salt

B. Bromine

C. Iodine

D. Magnesium & potassium compounds