AQA A-Level Chemistry AS Paper 1, June 2023: Question 17

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AQA A-Level Chemistry AS Paper 1, June 2023: Question 17
Question text

17 Which statement about this redox reaction is correct?

3 Sn2+(aq) + Cr O 2– (aq) + 2 H+(aq) → 2 Cr3+(aq) + 3 SnO (s) + H O(l)

27 2 2

[1 mark]

A Sn2+ is the oxidising agent and it gains electrons.

B Sn2+ is the reducing agent and it gains electrons.

C Cr O 2– is the oxidising agent and it gains electrons.

D Cr O 2– is the reducing agent and it gains electrons.

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17 C 1 (AO1) Cr O 2– is the oxidising agent and it gains electrons.

Question and mark scheme from the AQA A-Level Chemistry examination, AS Paper 1, June 2023. QuestionVault is an independent revision resource; questions remain the copyright of the awarding body.