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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 11
26.
Plasticisers are added to synthetic plastics to
impart flexibility.
improve workability during fabrication.
develop new improved properties not present in the original resins.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Rosin soap is added during paper manufacture to
impart adhesive properties.
improve opacity.
impart resistance to penetration by liquids.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by
iron-steam reaction.
electrolysis of water.
steam reforming of naphtha.
its cryogenic separation from coke oven gas.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Carboxymethyl cellulose (CMC) is added in detergents to
prevent redeposition of soil on cleaned surface.
act as optical brightening agent.
inhibit corrosion in washing machines made of aluminium,
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Synthesis gas is a mixture of
CO and H2
N2 and H2
H2, CH4 and CO
CO2 and H2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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