DP Chemistry (last assessment 2024)

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Question 22M.2.hl.TZ2.5b

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.hl.TZ2.5b
Level hl Paper 2 Time zone TZ2
Command term Calculate Question number b Adapted from N/A
b.
[Maximum mark: 1]
22M.2.hl.TZ2.5b

Iron(II) disulfide, FeS2, has been mistaken for gold.

(b)

Calculate the oxidation state of sulfur in iron(II) disulfide, FeS2.

[1]

Markscheme

–1 ✔

 

Accept “– I”.

Examiners report

This was an easy question, yet 30% of the candidates were unable to work it out; some wrote the oxidation state in the conventionally incorrect format, 1- and lost the mark.

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