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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 7
16.
Rotary kiln is not involved in the production of
cement
lime from limestone
slaked lime from quick lime
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
25
60-70
150-200
250-300
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Vanillin is a type of
anti-pyretic drug
food preservative
flavour
dye
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Temporary hardness of water can be removed by
addition of alum (a coagulant).
boiling.
filtration (through gravity sand filter).
addition of lime.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
More than 100 percent of __________ is present in oleum.
SO3
H2SO4
H2SO3
SO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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