Chemical Engineering - Polymer Technology

26.
Cellulose content in bomboo fibre is about __________ percent.
10
20
50
85
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of
cross linked polystyrene.
phenol formaldehyde resins.
polyesters.
polyamides.
Answer: Option
Explanation:
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28.
Which of the following has the weakest intermolecular forces ?
Polyisoprene
Nylon-66
Polystyrene
Bakelite
Answer: Option
Explanation:
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29.
Properties of a polymer is affected by the
chain length.
intermolecular forces.
branching & cross-linking.
all (a), (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
In condensation polymerisation as compared to addition polymerisation
the monomers are unsaturated compounds.
no co-product is lost.
the monomers contain two functional groups.
generally only one monomer is involved
Answer: Option
Explanation:
No answer description is available. Let's discuss.