DP Chemistry (last assessment 2024)

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Question 19M.2.hl.TZ1.1a

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Date May 2019 Marks available [Maximum mark: 2] Reference code 19M.2.hl.TZ1.1a
Level hl Paper 2 Time zone TZ1
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 2]
19M.2.hl.TZ1.1a

Xylene is a derivative of benzene. One isomer is 1,4-dimethylbenzene.

(a)

State the number of 1H NMR signals for this isomer of xylene and the ratio in which they appear.

 

[2]

Markscheme

Number of signals: 2     [✔]

Ratio:

3 : 2

OR

6 : 4     [✔]   

Note: Accept any correct integer or fractional ratio. Accept ratios in reverse order.

Examiners report

Many identified two correct peaks but quite a few less the correct ratio.

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