Correct answer: (C) HDPE is produced by condensation polymerization.
Explanation
HDPE forms by chain-growth addition polymerization of ethylene, without elimination of a small condensate. Thus C is false. Nylon-6,6 forms by condensation, phenol–formaldehyde resin forms a thermoset network, and polyethylene terephthalate contains ester linkages and is a polyester.
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