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Chemical Process MCQs

Chemical Engineering Objective Questions

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50. The product obtained on mixing calcium oxide with water is called
A. Quicklime
B. Slaked lime
C. Milk of lime
D. None of these
Discussion
51. The main component of pyrex glass is
A. Zinc
B. Lead
C. Boron
D. Celenium
Discussion
52. Roasting of metallurgical ores is done mainly to
A. Dehydrate it
B. Sinter the ore
C. Remove CO2 & H2O
D. Remove arsenic & sulphur
Discussion
53. The purpose of adding Na2CO3 to water of low alkalinity is to
A. Permit the use of alum as a coagulant
B. Increase the softening capacity of zeolite
C. Facilitate easy regeneration of zeolite
D. All of the above
Discussion
54. At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
A. Independent of
B. Directly proportional to
C. Inversely proportional to
D. Proportional to the square of
Discussion
55. Nylon-6 is a
A. Polyamide
B. Thermosetting resin
C. Polyester
D. None of these
Discussion
56. Direct conversion of chemical energy into electrical energy is done in a
A. Magnetohydrodynamic (MHD) generator
B. Fuel cell
C. Fast breeder reactor
D. None of these
Discussion

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