DP Chemistry (last assessment 2024)

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Question 19M.1.sl.TZ2.25

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.sl.TZ2.25
Level sl Paper 1 Time zone TZ2
Command term Question number 25 Adapted from N/A
25.
[Maximum mark: 1]
19M.1.sl.TZ2.25

Which of the following can be both formed from bromoethane and converted directly into ethanal?

CH3CH2Br → X
X → CH3CHO

A. CH3CH2OH

B. CH3OCH3

C. CH3COOH

D. H2C=CHBr

[1]

Markscheme

A

Examiners report

The question involving a sequence of organic reactions discriminated well between high scoring and low scoring candidates. 68 % chose the correct compound.

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