A-LevelChemistryPolymerisationMay/June 2010Paper 1 Q291 Mark
In many countries plastic waste is collected separately and sorted. Some of this is incinerated to provide heat for power stations. Why is pvc, polyvinylchloride, removed from any waste that is to be incinerated?
AIt destroys the ozone layer.
BIt does not burn easily.
CIt is easily biodegradable.
DIts combustion products are harmful.
✓ Correct Answer
The correct answer is D. 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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