DP Chemistry (last assessment 2024)

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Question 19M.2.hl.TZ2.a

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.2.hl.TZ2.a
Level hl Paper 2 Time zone TZ2
Command term Draw Question number a Adapted from N/A
a.
[Maximum mark: 1]
19M.2.hl.TZ2.a

Phenylethene can be polymerized to form polyphenylethene (polystyrene, PS).

Draw the repeating unit of polyphenylethene.

[1]

Markscheme

      [✔]

 

Note: Do not penalize the use of brackets and “n”.

Do not award the mark if the continuation bonds are missing.

Examiners report

Most candidates were able to draw the monomer correctly. Some candidates made careless mistakes writing C6H6.

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