DP Chemistry (last assessment 2024)

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Question 21M.2.hl.TZ1.4b

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.hl.TZ1.4b
Level hl Paper 2 Time zone TZ1
Command term Suggest Question number b Adapted from N/A
b.
[Maximum mark: 1]
21M.2.hl.TZ1.4b

Hydrogen peroxide can react with methane and oxygen to form methanol. This reaction can occur below 50°C if a gold nanoparticle catalyst is used.

(b)

The hydrogen peroxide could cause further oxidation of the methanol. Suggest a possible oxidation product.

[1]

Markscheme

methanoic acid/HCOOH/CHOOH
OR
methanal/HCHO ✔

Accept “carbon dioxide/CO2”.

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