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Identify correct statement from the following.

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Bakelite is an example of thermoplastic

The intermolecualr forces of attractions in Nylon 6,6 are London dispersion forces

Strong covalent bonds are formed between the polymeric chains in cross linked polymers

Vulcanised rubber is a natural polymer

answer is B.

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Detailed Solution

Answer: c) Strong covalent bonds are formed between the polymeric chains in cross-linked polymers.

Why

a: Bakelite is a thermosetting polymer, not thermoplastic.

b: Nylon-6,6 chains are held mainly by hydrogen bonding (from –CONH–), not just London forces.

d: Natural rubber is natural; vulcanised rubber is chemically modified with sulfur cross-links, so not “natural.”

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