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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 13
31.
__________ is used as a flux in the smelting of copper ore like chalcopyrite.
Coke breeze
Lime powder
Silica/quartz
Dolomite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
teflon
bakelite
polyester
nylon-66
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Hydrogenation of oil does not
remove double bonds.
raise its melting point.
improve its resistance to oxidation.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Main constituents of cotton fiber is
lignin
cellulose
starch
gelatine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
CaCl(OCl) is the chemical formula of
hypo
bleaching powder
plaster of paris
aqua regia
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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