Question
Given the standard electrode potentials,
$\begin{array}{l} K ^{+} / K =-2.93 V, Ag ^{+} / Ag =0.80 V \\ Hg ^{2+} / Hg =0.79 V \\ Mg ^{2+} / Mg =-2.37 V, Cr ^{3+} / Cr =-0.74 V\end{array}$
Arrange these metals in their increasing order of reducing power.
$\begin{array}{l} K ^{+} / K =-2.93 V, Ag ^{+} / Ag =0.80 V \\ Hg ^{2+} / Hg =0.79 V \\ Mg ^{2+} / Mg =-2.37 V, Cr ^{3+} / Cr =-0.74 V\end{array}$
Arrange these metals in their increasing order of reducing power.