DP Chemistry (last assessment 2024)

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Question 19M.1.hl.TZ2.29

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.hl.TZ2.29
Level hl Paper 1 Time zone TZ2
Command term Question number 29 Adapted from N/A
29.
[Maximum mark: 1]
19M.1.hl.TZ2.29

The following reaction occurs in a voltaic (galvanic) cell.

Mg (s) + 2Ag+ (aq) → Mg2+ (aq) + 2Ag (s)

Which reaction takes place at each electrode?

[1]

Markscheme

C

Examiners report

83 % of the candidates were able to identify the electrode equations given the cell reaction. The most commonly chosen distractor B had the correct half-equations at the opposite electrodes.

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