CAIE A Level Chemistry 9701 · Polymerisation
Poly(ethene) and poly(chloroethene) (PVC) are both addition polymers made from alkene monomers.
Suggest why both polymers are non-biodegradable, and why the disposal of PVC by burning is more harmful to the environment than the disposal of poly(ethene) by burning.
6 marks, so the mark scheme is looking for about 6 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
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