DP Chemistry (last assessment 2024)

Question 18M.2.sl.TZ2.c.i

Date	May 2018	Marks available	[Maximum mark: 1]	Reference code	18M.2.sl.TZ2.c.i
Level	sl	Paper	2	Time zone	TZ2
Command term	Deduce	Question number	c.i	Adapted from	N/A

c.i.

[Maximum mark: 1]

18M.2.sl.TZ2.c.i

The structure of an organic molecule can help predict the type of reaction it can undergo.

Improvements in instrumentation have made identification of organic compounds routine.

The empirical formula of an unknown compound containing a phenyl group was found to be C₄H₄O. The molecular ion peak in its mass spectrum appears at m/z = 136.

Deduce the molecular formula of the compound.

[1]

Markscheme

« $\frac{{136}}{{48 + 4 + 16}} = 2$ »

C₈H₈O₂

[1 mark]

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Core

Core » Topic 11: Measurement and data processing » 11.3 Spectroscopic identification of organic compounds

Core » Topic 11: Measurement and data processing

Question 18M.2.sl.TZ2.c.i

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