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Chemistry · Oct / Nov 2021 · Paper 12 · Question 40

5070Polymers

P is a polymer that: ● has six carbon atoms in each of the monomers from which it is formed ● is not a polyester ● is formed using condensation polymerisation. What is the partial structure of P?

  1. A-C(=O)-(CH2)4-C(=O)-O-(CH2)6-O-
  2. B-C(=O)-(CH2)6-C(=O)-N(H)-(CH2)6-N(H)-
  3. C-C(=O)-(CH2)4-C(=O)-N(H)-(CH2)6-N(H)-
  4. D-C(CH3)(H)-C(C3H7)(H)-C(CH3)(H)-C(C3H7)(H)-

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Correct answer: C. -C(=O)-(CH2)4-C(=O)-N(H)-(CH2)6-N(H)-

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