chemical engineering chemical process MCQs – Page 11

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 Review each marked answer and report any item that may be outdated or unclear.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
201. Type of glass used in optical work is the ___________________ glass?
comments icon0

A. Borosilicate

B. Lead

C. Soda-lime

D. Fibre

202. Catalyst used during the manufacture of Vanaspati Ghee is ___________________?
comments icon0

A. Zinc

B. Nickel

C. Copper

D. Platinum

203. High temperature carbonisation of coal takes place at __________________ C?
comments icon0

A. 2000

B. 1100

C. < 500

D. 700

204. White phosphorous is stored under water, because __________________?
comments icon0

A. It does not react with water

B. It is unstable

C. Its kindling temperature in dry air is very low

D. It is poisonous

205. Commercial production of soda ash by Solvay process requires limestone, ___________________ as raw materials?
comments icon0

A. None of these

B. Coke and caustic soda

C. Coke and sand

D. Brine and coal
206. The enzyme which converts starch into the disaccharides maltose is_________________?
comments icon0

A. Maltase

B. Yeast

C. Diastase

D. None of these

207. Ethyl alcohol cannot be produced_________________?
comments icon0
A. None of these

B. From molasses

C. By Esterification and hydrolysis of ethylene

D. From waste sulphite substrate of paper mills

208. Pick out the endothermic reaction out of the following ?
comments icon0

A. C+ O2 = CO

B. CO + 3H2 = CH4 + H2O

C. CaCO3 = CaO + CO2

D. CO + O2 = CO2

209. Which of the following is an ore of iron ?
comments icon0

A. Bauxite

B. Chalcopyrite

C. Hematite

D. Galena

210. Linde process of gas liquefaction employs__________________?
comments icon0

A. Exchange of heat with colder stream

B. Merely compressing the gas beyond its critical pressure

C. Adiabatic expansion against a piston or in a turbine

D. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
211. Fusel oil is a/an_________________?
comments icon0
A. Mixture of higher molecular weight alcohols (a by-product obtained during production of

B. Extract from medicinal herbs

C. Essential oil

D. ohol from molasses)</strong>

E. None of these

212. In the manufacture of viscose rayon, the raw material used industrially is ____________________?
comments icon0

A. Eucalyptus wood

B. Bamboo

C. Fine teak wood

D. Bagasse

213. Multistage catalytic converter is not used in the___________________?
comments icon0

A. Conversion of SO2 to SO3

B. NH3 synthesis reaction

C. Both A. and B.

D. Neither A. nor B.

214. Which of the following coals has the highest calorific value ?
comments icon0

A. Sub-bituminous

B. Lignite

C. Peat

D. Anthracite
215. Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?
comments icon0

A. Bleaching

B. Depithing

C. None of these

D. Digestion

216. Cooking liquor in case of sulphite process is _____________________?
comments icon0
A. Sodium sulphite and sodium bisulphite

B. None of these

C. Magnesium sulphate and magnesium bicarbonate

D. Magnesium sulphite and free SO2 in acid medium

217. The difference between saponification value and acid value is____________________?
comments icon0

A. Always negative

B. Constant for all fatty oils

C. Called ester value

D. None of these

218. Chrome tanning and vegetable tanning are done for ________________?
comments icon0
A. Light & heavy leather respectively

B. Heavy & light leather respectively

C. Both light & heavy leather

D. Neither light nor heavy leather

219. Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?
comments icon0
A. V2O5

B. Ni

C. Cr

D. Pt

220. Insulin is an __________________ drug?
comments icon0

A. Anti-malarial

B. Anti-TB

C. Antibiotic

D. None of these