A-LevelChemistryPolymerisation9701/12 · May/June 2013 · Q301 Mark

Polymerisation of ethene gives poly(ethene). How does the carbon–carbon bond in poly(ethene) compare with that in ethene?

AThe carbon–carbon bond is longer and stronger in poly(ethene).

BThe carbon–carbon bond is longer and weaker in poly(ethene).

CThe carbon–carbon bond is shorter and stronger in poly(ethene).

DThe carbon–carbon bond is shorter and weaker in poly(ethene).

✓ Correct answer

B: The carbon–carbon bond is longer and weaker in poly(ethene).

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Topic: Polymerisation, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2013 Paper 1 Variant 2, question 30.

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