DP Chemistry (last assessment 2024)

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Question 19M.2.hl.TZ1.a

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

Benzoic acid, C6H5COOH, is another derivative of benzene.

Identify the wavenumber of one peak in the IR spectrum of benzoic acid, using section 26 of the data booklet.

[1]

Markscheme

Any wavenumber in the following ranges:
2500−3000 «cm−1» [✔]
1700−1750 «cm−1» [✔]
2850−3090 «cm−1» [✔]

Examiners report

Most candidates could identify a wavenumber or range of wavenumbers in the IR spectrum of benzoic acid.

Syllabus sections