chemical engineering chemical process MCQs – Page 9

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 Review each marked answer and report any item that may be outdated or unclear.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
161. The main use of HCl is in the___________________?
comments icon0

A. Manufacture of cationic detergent

B. Treatment of spent fuel of nuclear reactor

C. Drilling of petroleum wells and pickling of steel sheets

D. None of these

162. Digestion of wood-base materials (for manufacture of pulp) is done to __________________?
comments icon0
A. Remove lignin

B. Produce long fibres

C. None of these

D. Prevent deterioration on storage

163. Hydrogenation of oil does not ___________________?
comments icon0

A. Raise its melting point

B. Improve its resistance to oxidation

C. None of these

D. Remove double bonds

164. Process conditions in fermentator used for production of penicillin is____________________?
comments icon0

A. 50C, l0 atm

B. 30C, 200 mm Hg (absolute)

C. 25C, 2 atm

D. 90C, 45 atm

165. Alkylbenzene sulfonate (ABS) is a____________________?
comments icon0
A. Detergent

B. Polyester

C. Pesticide

D. Rubber

166. Which of the following sugars is the sweetest ?
comments icon0

A. Glucose

B. Fructose

C. Sucrose

D. Lactose

167. Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material ?
comments icon0

A. Slag cement

B. Glasses

C. Porcelain/Potteries

D. Teflon
168. Fourdrinier machine is used in the manufacture of ___________________?
comments icon0

A. Sugar

B. Paper

C. Phenol formaldehyde

D. Alcohol from molasses

169. Ethanol amine is produced using ammonia and_________________?
comments icon0

A. Ethane

B. Ethanol

C. Ethyl benzene

D. Ethylene oxide
170. The most stable allotropic form of phosphorous is the _________________ phosphorous?
comments icon0

A. White

B. Red

C. Yellow

D. Black
171. Solvay process as compared to dual process (i.e. modified Solvay process) ?
comments icon0

A. Can use low grade brine

B. Has less corrosion problems

C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl

D. Both B. and C.
172. Oxidation of SO2 to SO3 is favoured by______________________?
comments icon0

A. High temperature and high pressure

B. Low temperature and low pressure

C. High temperature and low pressure

D. Low temperature and high pressure
173. Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of____________________?
comments icon0
A. Perchloroethylene

B. Trichloroethylene

C. Parathion

D. Methanol

174. Portland cement consists mainly of__________________?
comments icon0

A. CaO & Fe2O3

B. CaO & SiO2

C. SiO2 & Al2O3

D. CaO & Al2O3

175. Na2CO3 is called _________________?
comments icon0

A. Calcite

B. Plaster of Paris

C. Washing soda

D. Soda ash
176. ______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ?
comments icon0

A. Ammonium chloride

B. Chlorine

C. Sodium bi-carbonate

D. Sodium carbonate

177. Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about ______________ C ?
comments icon0

A. -196

B. -183

C. -218

D. -83

178. Glycerine is recovered from lye by ___________________?
comments icon0
A. Evaporation followed by vacuum distillation

B. Extractive distillation technique

C. None of these

D. Liquid extraction technique

179. Saponification value/number of an oil or fat is a measure of its ___________________?
comments icon0

A. Fatty acid content

B. Insoluble fatty acid content

C. Average molecular weight

D. Degree of unsaturation of the fatty acids present in it

180. Neoprene is a__________________?
comments icon0
A. Synthetic rubber

B. Polyester

C. None of these

D. Monomer