DP Chemistry (last assessment 2024)

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Question 21M.2.hl.TZ1.3a

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.hl.TZ1.3a
Level hl Paper 2 Time zone TZ1
Command term Deduce Question number a Adapted from N/A
a.
[Maximum mark: 1]
21M.2.hl.TZ1.3a

Magnetite, Fe3O4, is another ore of iron that contains both Fe2+ and Fe3+.

(a)

Deduce the ratio of Fe2+:Fe3+ in Fe3O4.

[1]

Markscheme

1:2 ✔

Accept 2 Fe3+: 1 Fe2+
Do not accept 2:1 only

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