JEE Main 20205 SeptemberEvening Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 5 September
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Polymers
JEE Main 2020 · 5 September · Evening Shift · Chemistry · Polymers
Which one of the following polymers is not obtained by condensation...
Which one of the following polymers is not obtained by condensation polymerisation ?
Options
- ANylon 6, 6
- BBuna – N
- CBakelite
- DNylon 6
Correct answer
B. Buna – N
Step-by-step solution
The polymers made by addition polymerisation from two different monomers are termed as copolymers, e.g., Buna-S, Buna-N, etc.
Bakelite is a condensation polymer of formaldehyde and phenol . In practice, the phenol and formaldehyde are first polymerized to a small extent by using the proper choice of catalyst and temperature.
Nylon is also condensation polymer.