Question

Which functional group is present in polyester? Select the proper choice from the given choices.
(A) -COO-
(B) -CH₂-CH₂-
(C) -CONH-
(D) -CH₂-CN

Answer 1

Answer:

(A) $-coo-$

Explanation:

polyester is a synthetic polymers which is made up of from different chemicals repeating units linked by ester  $-coo-$ groups.

Answer 2

-COO- functional group is present in polyester

Explanation:

Polymer is a macromolecule formed by the combination of simpler units called as monomers.

Polyesters are compounds with functional group -COO- which is formed by combination of alcohol $(RCH_2OH)$ and carboxylic acid $RCOOR$ releasing water molecules as by products.

$CH_2-CH_2$ results in polymerization of polythene.

$-CONH-$ are polyamides formed by combination of amines $RNH_2$ and acids $RCOOH$.

Learn more about polymers

https://brainly.com/question/11919020

https://brainly.in/question/8870694