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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 9
46.
Litharge is
lead oxide
zinc oxide
zinc sulphide
cellulosic photographic material
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Coagulant is used __________ filtration.
before
after
during
to avoid
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
10% oleum comprises of 10% free
SO2
H2SO3
SO3
H2SO4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Use of chlorine in the treatment of sewage
helps in grease separation.
increases the biological oxygen demand(BOD).
causes bulking of activated sludge.
aids in flocculation.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.
emulsification
dispersion
precipitation
wetting
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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