A-LevelChemistryPolymerisationMay/June 2013Paper 1 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
The correct answer is B. This question tests the candidate's understanding of polymerisation within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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