The magnitude of the change in oxidising power of the \( \mathrm{MnO}_{4}^{-} / \mathrm{Mn}^{2+}...

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The magnitude of the change in oxidising power of the \( \mathrm{MnO}_{4}^{-} / \mathrm{Mn}^{2+} \) couple is \( \mathrm{x} \times 10^{-4} \mathrm{~V} \), if the \( \mathrm{H}^{+} \)concentration is decreased from \( 1 \mathrm{M} \) to \( 10^{-4} \mathrm{M} \) at \( 25^{\circ} \mathrm{C} \). (Assume concentration of \( \mathrm{MnO}_{4}^{-} \)and \( \mathrm{Mn}^{2+} \) to be same on changing oxidising power). The value of \( \mathrm{x} \) is (Rounded off to the nearest integer) \( \left[\right. \) Given; \( \left.\frac{2.303 \mathrm{RT}}{\mathrm{F}}=0.059\right] \)
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