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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 4
6.
Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like
high cost
fragile nature
easy poisoning tendency
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
__________ of rubber decreases after its vulcanisation.
Resistance to the action of organic solvent
Tackiness
Maximum service temperature
Tensile strength
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Boiling of water containing temporary hardness produces
CO2
CaSO4
CaHCO3
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Starting material for the commercial production of ethyl alcohol in India is
rice
molasses
fruit of Mahua tree
maize
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Phenol formaldehyde
employs addition polymerisation.
employs condensation polymerisation.
is a monomer.
is an abrasive material.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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