JEE Main 2022 — Polymers Question with Solution
From: JEE Main 2022 (Online) 24th June Morning Shift
Question
Which of the following is an example of polyester?
Choose an option
Show full solutionCorrect option: D
Correct answer
DPoly--hydroxybutyrate-co--hydroxyvalerate
Step-by-step explanation
Polyesters are formed by condensation reaction between alcohols and carboxylic acid.
Poly- -hydroxybutyrate-co- -hydroxy valerate (PHBV) is a polymer obtained by condensation reaction of 3-hydroxybutanoic acid with 3-hydroxypentanoic acid.

Hence, PHBV is a polyester.
Poly- -hydroxybutyrate-co- -hydroxy valerate (PHBV) is a polymer obtained by condensation reaction of 3-hydroxybutanoic acid with 3-hydroxypentanoic acid.

Hence, PHBV is a polyester.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Polymers chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2022, covering the Polymers chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.