Chemistry · May / June 2020 · Paper 11 · Question 18
5070Redox
Pieces of zinc are added to aqueous copper(II) sulfate. Cu2+(aq) + Zn(s) → Zn2+(aq) + Cu(s) Which statement is correct?
- ACu2+(aq) is oxidised to Cu(s) by gaining electrons.
- BCu2+(aq) is reduced to Cu(s) by losing electrons.
- CZn(s) is oxidised to Zn2+(aq) by losing electrons.
- DZn(s) is reduced to Zn2+(aq) by gaining electrons.
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Correct answer: C. Zn(s) is oxidised to Zn2+(aq) by losing electrons.
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