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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 13
21.
The most widely used coagulant for removing suspended impurities from water is
bleaching powder
chlorine
calcium sulphate
alum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Main constituent of limestone is
CaCO3
MgCO3
Na2CO3
CaSO4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.
Chlorine
Ammonium chloride
Sodium carbonate
Sodium bi-carbonate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Fat splitting catalyst is
CaCO3
ZnO
Al2O3
Fe
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Phthalic anhydride is used
in making PVC
as plasticisers
in insecticides manufacture
for making nylon-6
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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