JEE PYQ: Biomolecules And Polymers Question 25
Question 25 - 2020 (05 Sep Shift 2)
Which one of the following polymers is not obtained by condensation polymerisation?
(1) Nylon 6,6
(2) Buna-N
(3) Bakelite
(4) Nylon 6
Show Answer
Answer: (2)
Solution
Buna-N is obtained by addition polymerisation. $n\text{CH}_2=\text{CH}-\text{CH}=\text{CH}_2 + n\text{CH}_2=\overset{\text{CN}}{\text{CH}} \xrightarrow{\text{Copolymerisation}}$ Buna-N. Nylon-6, bakelite, nylon-6,6 are obtained by condensation polymerisation.