Which of the following is not true?

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(D) $1$. Nylon-$2$-Nylon-$6$ is a polyamide copolymer of glycine and amino caproic acid,which is indeed a biodegradable polymer.$2$. Dacron (also know

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Bakelite: Addition polymer

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(D) $1$. Nylon-$2$-Nylon-$6$ is a polyamide copolymer of glycine and amino caproic acid,which is indeed a biodegradable polymer.$2$. Dacron (also known as Terylene) is a polyester formed by the condensation polymerization of ethylene glycol and terephthalic acid.$3$. BuNa-$S$ is a synthetic rubber (styrene-butadiene rubber),which is classified as an elastomer.$4$. Bakelite is a phenol-formaldehyde resin,which is formed by condensation polymerization,not addition polymerization. Therefore,the statement 'Bakelite: Addition polymer' is false.

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