The electrolysis of copper(ii) sulfate solution using inert electrodes
1 mark · EasyWrite the balanced half-equation for the reaction at the cathode during the electrolysis of copper(II) sulfate solution using inert electrodes.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Cu^{2+}(aq) + 2e^- \rightarrow Cu(s)
Also accept: Cu(II) ions gain 2 electrons to form copper metal; Cu^{2+} + 2e^- → Cu
Common mistakes: Cu^{2+}(aq) \rightarrow Cu(s) + 2e^-
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Correctly writes Cu^{2+}(aq) + 2e^- → Cu(s) with state symbols.
Worked solution