Suggest4 marksStandard
A polyester is formed by reacting propane-1,3-diol with butanedioyl dichloride, . Suggest the structure of the repeat unit of this polyester, and describe the type of reaction and the conditions used.
CAIE A Level Chemistry 9701 · Polymerisation
Polymerisation: suggest question
How this question is marked
4 marks, so the mark scheme is looking for about 4 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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