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JEE Main Chemistry question

ChemistryElectrochemistryJEE Main

is unstable in solution and undergoes simultaneous oxidation and reduction, according to the reaction

Choose the correct for the above reaction if V, V

Answer: (C)

Solution

First find : since 2\times E^\circ_{\mathrm{Cu^{2+}/Cu}} = 1\times E^\circ_{\mathrm{Cu^{2+}/Cu^+}} + 1\times E^\circ_{Cu^+/Cu} (additivity of ), , giving

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Question ID VK-143616