Chemical Engineering MCQs

6108 MCQs  (Page 98 of 611)

SO2 is bubbled through hot sugar cane juice to_______________?
A. Act as an acidifying agent
B. Increase its concentration
C. Increase the amount of molasses
D. Increase the crystal size
Which one of the following is not an elastomer ?
A. Polyisoprene
B. Neoprene
C. Nitrile-butadiene
D. None of these
Naphthols are derivatives of________________?
A. Methyl amine
B. Naphthalene
C. Phenol
D. Xylene
In the Solvay process, the product from the calciner is___________________?
A. Light soda ash
B. Dense soda ash
C. Sodium bicarbonate
D. Dehydrated soda ash
Fermentation is adversely affected by the____________________?
A. Presence of air
B. Absence of air
C. High concentration
D. Presence of ammonium salts
Penicillin is made employing _______________ fermentation process?
A. Continuous
B. Aerobic batch
C. Anaerobic batch
D. None of these
20% oleum means that in 100 kg oleum, there are 20 kg of_____________________?
A. So3 and 80kg of h2so4
B. H2so4 and 80kg of so3
C. So3 for each 100 kg of h2so4
D. None of these
Nicotine is___________________?
A. A volatile alkaloid
B. Obtained by treating by-products of the tobacco processing industry
C. Both a. and b.
D. Neither a. nor b.
CO & H2 are the constituents of___________________?
A. Producer gas
B. Water gas
C. Coke oven gas
D. All a., b. and c.