chemical engineering chemical process MCQs – Page 10

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 Review each marked answer and report any item that may be outdated or unclear.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
181. Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of_________________?
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A. Arsenic

B. Lead

C. Carbon

D. Sulphur

182. Oleum produces fumes of_____________________?
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A. H2SO4

B. SO2

C. SO3

D. SO2 + H2SO4

183. Which of the following is not required in the manufacture of soda ash by Solvay process ?
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A. None of these

B. Limestone

C. Ammonia

D. Nitric acid
184. Nickel is not used as a catalyst in the____________________?
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A. Hydrogenation of oil

B. Ostwalds process of HNO3 manufacture

C. Shift conversion

D. Fischer-Tropsch process

185. Iron ore hematite is concentrated using ____________________?
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A. Electromagnetic separation mainly

B. Gravity separation

C. Froth floatation

D. Roasting

186. Which of the following is the second major component of cement ?
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A. Al2O3

B. Fe2O3

C. CaO

D. SiO2
187. Molasses is the starting material for the production of ___________________ ?
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A. Alcohol

B. Essential oil

C. Fatty acids

D. Massecuite

188. Builders are added in soap to act as___________________?
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A. Cleaning power booster

B. Fabric brightener

C. Corrosion inhibitor

D. Anti-redeposition agent

189. Main constituent of limestone is____________________?
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A. Na2CO3

B. CaCO3

C. CaSO4

D. MgCO3

190. Hard water____________________?
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A. All A, B. and C

B. Pollutes the water stream

C. Does not affect the lather formation by soap

D. Is not unfit for drinking purpose
191. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?
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A. CaO

B. NH3

C. Coke

D. NaCl

192. 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. Pollution of water stream by mercury

C. High cost of mercury

D. Non-availability of high purity mercury

193. Sucrose content in the raw juice extracted from sugar cane is about _________________ percent?
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A. 50 60

B. 1 2

C. 80 85

D. 15 20
194. Hydrogenation of oil/fat does not_________________?
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A. Remove double bonds

B. None of these

C. Raise its melting point

D. Improve its resistance to rancid oxidation

195. Paper pulp produced by Kraft/sulphate process is__________________ ?
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A. Dull white in color

B. Strong fibrous

C. Dark colored

D. Bleached easily

196. Starting raw material for the manufacture of alum is_________________?
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A. Gypsum

B. Ammonium bicarbonate

C. Alumina

D. Bauxite
197. Metallic soap is ________________ salt of fatty acids ?
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A. Sodium

B. Potassium

C. Both sodium & potassium

D. Aluminium or calcium
198. Main constituents of cotton fiber is__________________?
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A. Starch

B. Lignin

C. Gelatine

D. Cellulose
199. ________________ acid is an unsaturated fatty acid ?
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A. Oxalic

B. Oleic

C. Palmitic

D. Stearic

200. Solvent used for extraction of oil is_____________________?
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A. None of these

B. Hexane

C. Methyl ethyl ketone

D. Furfural