Compare5 marksStandard
Propene, , undergoes addition polymerisation to form poly(propene).
Compare the structure of the propene monomer with the repeating unit of the polymer, and explain the mechanism by which the polymer is formed.
CAIE A Level Chemistry 9701 · Hydrocarbons
Hydrocarbons: compare question
How this question is marked
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
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