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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 11
41.
Acrylonitrile is mainly used in the __________ industry.
polymer
printing
dyeing
photographic
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
The enzyme which converts starch into the disacharides maltose is
diastase
maltase
yeast
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Pick out the false statement pertaining to water treatment.
Aeration of water is effective in CO2 removal.
The zeolite water softening process reduces the hardness of water by not more than 50%.
Sodium sulphate or sodium carbonate do not cause hardness in water.
Water with pH value less than 7, is acidic.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Presence of H2S in raw water (to be chlorinated) results in the
reduced softening capacity of zeolite.
increased dosage of chlorine to provide a disinfecting residual in the water.
easy removal of its hardness.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Contact process of sulphuric acid manufacture
yields acid of higher concentration than chamber process.
yields acids of lower concentration than chamber process.
is obsolete.
eliminates absorber.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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