CAIE A Level Chemistry 9701 · Polymerisation

Polymerisation: suggest question

Suggest6 marksChallenge

A polymer is produced from the monomer 1-chloroprop-1-ene, CHX3CH=CHCl\ce{CH3CH=CHCl}. A section of the polymer chain is shown.

…−CH(CHX3)−CHCl−CH(CHX3)−CHCl−…\ce{...-CH(CH3)-CHCl-CH(CH3)-CHCl-...}

Suggest the type of polymerisation reaction that produces this polymer, and explain your reasoning by referring to the structure of the monomer and the repeating unit in the polymer.

0 words · 6 marks

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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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