Q5 / 150 · MHT CET 2026 (17 April Shift 2) · Chemistry
Which from following polymer is obtained by addition polymerization?
- Correct answerA

- B$[\text{NH} - (\text{CH}_2)_5 - \text{CO}]_n$
- C

- D

Solution
Addition polymerization involves the repeated addition of monomer molecules possessing double or triple bonds to form a polymer, without the elimination of any small molecules.
Option (322647) represents Polyacrylonitrile (PAN), which is formed by the addition polymerization of acrylonitrile ($\text{CH}_2=\text{CH}-\text{CN}$).
Option (322648) represents Nylon-6, which is a condensation polymer of caprolactam.
Option (322649) represents Terylene (Dacron), which is a condensation polymer of ethylene glycol and terephthalic acid.
Option (322650) represents PHBV, which is a condensation polymer of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.
Therefore, the polymer obtained by addition polymerization is Polyacrylonitrile.
Answer:
Option (322647) represents Polyacrylonitrile (PAN), which is formed by the addition polymerization of acrylonitrile ($\text{CH}_2=\text{CH}-\text{CN}$).
Option (322648) represents Nylon-6, which is a condensation polymer of caprolactam.
Option (322649) represents Terylene (Dacron), which is a condensation polymer of ethylene glycol and terephthalic acid.
Option (322650) represents PHBV, which is a condensation polymer of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.
Therefore, the polymer obtained by addition polymerization is Polyacrylonitrile.
Answer:

Hence, the correct answer is option: 'A'.