Chemistry · Oct / Nov 2022 · Paper 11 · Question 23
5070Redox
In which reaction is the underlined substance reduced?
- ACaCO3 + 2HCl → CaCl2 + H2O + CO2
- BCu2+ + Zn → Cu + Zn2+
- CFe2O3 + 3CO → 2Fe + 3CO2
- DH2SO4 + Zn → ZnSO4 + H2
As printed in the paper
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Correct answer: B. Cu2+ + Zn → Cu + Zn2+
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