Which of the following is an example of a con | vedclass

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(D) Condensation polymers are polymers formed through a condensation reaction,where molecules join together with the loss of small molecules as by-pro

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All of these

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(D) Condensation polymers are polymers formed through a condensation reaction,where molecules join together with the loss of small molecules as by-products,such as $H_2O$ or methanol.$1$. Nylon is a type of condensation polymer called a polyamide,formed by the reaction of a dicarboxylic acid with a diamine,releasing $H_2O$.$2$. Bakelite is formed from a condensation reaction of phenol with formaldehyde,with the removal of $H_2O$.$3$. Urea-formaldehyde resin is an amino plastic resin formed by the reaction between urea and formaldehyde,with the removal of $H_2O$ molecules.Since all the given options are examples of condensation polymers,the correct answer is $D$.

List-$I$ (Polymers)	List-$II$ (Commercial names)
$A$. Phenol-formaldehyde resin	$I$. Glyptal
$B$. Copolymer of $1,3$-butadiene and styrene	$II$. Novolac
$C$. Polyester of glycol and phthalic acid	$III$. Buna-$S$
$D$. Polyester of glycol and terephthalic acid	$IV$. Dacron

Which of the following is an example of a condensation polymer?

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