Oxidation and reduction
1 mark · NormalWhich equation shows reduction in terms of electron transfer?
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Correct option: A. Cu^{2+} + 2e^- \to Cu
Common mistakes: choosing an oxidation equation
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Marking points
A1 · 1 mark · Correct option selected: A. Cu^{2+} + 2e^- \to Cu.
Worked solution
A is correct: Reduction is gain of electrons. Cu^{2+} gains electrons to become Cu.