DP Chemistry (last assessment 2024)

Question 20N.2.hl.TZ0.e

Date	November 2020	Marks available	[Maximum mark: 2]	Reference code	20N.2.hl.TZ0.e
Level	hl	Paper	2	Time zone	TZ0
Command term	Draw	Question number	e	Adapted from	N/A

[Maximum mark: 2]

20N.2.hl.TZ0.e

Compound A is in equilibrium with compound B.

Compound A and B are isomers. Draw two other structural isomers with the formula $C_{3} H_{6} O$ .

[2]

Markscheme

Accept any two $C_{3} H_{6} O$ isomers except for propanone and propen-2-ol:

✔✔

Penalize missing hydrogens in displayed structural formulas once only.

Examiners report

A surprising number of candidates drew propanone here as an option, either failing to read the question or perhaps finding the structural formulae provided difficult to understand.

Syllabus sections

Core

Core » Topic 10: Organic chemistry » 10.1 Fundamentals of organic chemistry

Core » Topic 10: Organic chemistry

Question 20N.2.hl.TZ0.e

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