Answer: Number of monomer units in a polymer chain.
- A Number of monomer units in a polymer chain
- B Molecular weight of the polymer in general practice
- C Temperature of polymerisation as frequently described
- D Rate of polymerisation in most textbook accounts
Correct answer: A. Number of monomer units in a polymer chain
Explanation: The degree of polymerisation (n) is the number of repeating monomer units in one polymer chain.
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.