Chemistry - Polymer Question with Solution | TestHub

The polymer obtained by ring-opening polymerization is Nylon-6.

Nylon-6 is synthesized by heating caprolactam (a cyclic amide with a 7-membered ring) with water at a high temperature. The reaction involves the opening of the caprolactam ring to form the repeating unit of the polymer.

The structure of Nylon-6 is $[\mathrm{NH}-({\mathrm{CH}}_2{)}_5-\mathrm{CO}{]}_{\mathrm{n}}$.

Other options:
1. Polyvinyl chloride (PVC) is formed by the addition polymerization of vinyl chloride.
2. Polyethylene is formed by the addition polymerization of ethene.
3. Nylon-6,6 is formed by the condensation polymerization of adipic acid and hexamethylenediamine.

Answer: ${\left[\mathrm{NH}-{\left({\mathrm{CH}}_2\right)}_5-\mathrm{CO}\right]}_{\mathrm{n}}$