CH-1785

Oxidation and reduction

Chemistry · Secondary 4 · Easy · Oxidation and reduction

Which equation represents a disproportionation reaction, where the same element is both oxidised and reduced?

$2Cl_2 + 2OH^- \rightarrow Cl^- + ClO^- + H_2O$
$Zn + Cu^{2+} \rightarrow Zn^{2+} + Cu$
$2Fe^{2+} + Cl_2 \rightarrow 2Fe^{3+} + 2Cl^-$
$2I^- + Br_2 \rightarrow I_2 + 2Br^-$

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