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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 9
21.
Anion exchanger is regenerated usually with
NaOH
H2SO4
hydrazine
alum solution
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
__________ is the major constituent of the Portland cement.
Calcium carbonate
Calcium oxide
Tricalcium silicate
Calcium sulphate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Catalytic oxidation of naphthalene produces
styrene
phenol
phthalic anhydride
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Parathion and Malathion are
pesticides.
plasticisers for unsaturated polysters.
pain-relieving drugs (analgesic).
tranquilisers.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Transparent soaps (e.g. Pears) are
usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency.
metallic soaps with frothing agent and free stearic acid to achieve transparency.
metallic soaps with frothing agent from which glycerine has not been recovered.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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