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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 12
46.
The main component of pyrex glass is
zinc
lead
boron
celenium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove
colour
turbidity
bacteria
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
__________ is an ore concentrating metallurgical process involving a chemical change.
Electromagnetic separation
Froth floatation
Roasting
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Basic oxide is absent in __________ glass.
flint
pyrex
quartz
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Graphite is a/an
electrical insulator.
allotrope of carbon.
moderator used in nuclear reactor.
both (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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