JEE Main 202131 AugustEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 31 August
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Polymers
JEE Main 2021 · 31 August · Evening Shift · Chemistry · Polymers
Which among the following is not a polyester ?
Which among the following is not a polyester ?
Options
- AGlyptal
- BPHBV
- CNovolac
- DDacron
Correct answer
C. Novolac
Step-by-step solution
Polyester is any of a group of polymers that consist basically the repeated units of an ester. Polyester is a synthetic fabric that’s usually derived from petroleum. Dacron, PHBV and Glyptal are polyesters. Novolac is a linear condensation polymer of phenol and formaldehyde.