A-LevelChemistryPolymerisation9701/12 · May/June 2017 · Q381 Mark

The diagram shows the monomer used to make polyvinyl chloride, PVC. [Figure 38.1] Assuming that one particular molecule of the polymer forms from n molecules of the monomer (where n is many thousands), which statements are correct? 1 The relative molecular mass of this polymer molecule is approximately 62.5n. 2 There are n chiral carbon atoms in this polymer molecule. 3 There are 5n σ bonds in one polymer molecule.

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A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

B: 1 and 2 only are correct

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Topic: Polymerisation, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2017 Paper 1 Variant 2, question 38.

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