Answer: Polyvinyl chloride.
- A Polyvinyl chloride
- B Polyvinyl carbonate
- C Polyvinylidene chloride
- D Polyvinyl cyanide
Correct answer: A. Polyvinyl chloride
Explanation: PVC (polyvinyl chloride) is widely used for pipes, cables, and packaging.
Addition polymerisation simply links monomers containing a double bond with nothing left over, while condensation polymerisation joins two different monomers through a reaction (often forming an ester or amide bond) that releases a small molecule like water at each step.
Concept context
Large molecules made of repeating monomer units. Covers addition and condensation polymerisation, natural and synthetic polymers (nylon, PVC, Bakelite, natural rubber), and their real-world industrial applications.