DP Chemistry (last assessment 2024)

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Question 18N.2.hl.TZ0.c

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.2.hl.TZ0.c
Level hl Paper 2 Time zone TZ0
Command term Predict Question number c Adapted from N/A
c.
[Maximum mark: 2]
18N.2.hl.TZ0.c

Carbon dioxide contributes significantly to global warming. It can be used as a raw material with methyloxirane to form polymers.

Predict the chemical shift and splitting pattern of the signal produced by the hydrogen atoms labelled X in the 1H NMR spectrum of the polymer. Use section 27 of the data booklet.

[2]

Markscheme

Chemical shift:
3.7–4.8 «ppm» ✔

Splitting pattern:
doublet ✔

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