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Chemistry · Oct / Nov 2025 · Paper 12 · Question 36

5070Polymers

The diagram shows the repeat unit of a polymer. [repeat unit: -C(H2)-C(H)(CH2CH3)-] Which row shows the monomer and type of polymerisation involved in making this polymer?

  1. Amonomer: CH2=CH(C2H5); type of polymerisation: addition
  2. Bmonomer: CH2=CH(C2H5); type of polymerisation: condensation
  3. Cmonomer: CH3-CH2-CH=CH2; type of polymerisation: addition
  4. Dmonomer: CH3-CH2-CH=CH2; type of polymerisation: condensation

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Correct answer: A. monomer: CH2=CH(C2H5); type of polymerisation: addition

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