Two platinum electrodes were immersed in a solution of CuSO4 and electric current was passed through

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Two platinum electrodes were immersed in a solution of CuSO4 and electric current was passed through the solution. After some time, it was found that colour of CuSO4 disappeared with the evolution of gas at the electrode. The colourless solution contains

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At cathode: $Cu^{2 +}(aq) + 2e^{-} \rightarrow Cu(s)$At anode: $2H_{2}O(l) \rightarrow O_{2}(g) + 4H^{+}(aq) + 4e^{-}$Hence, solution becomes rich in H2SO4.

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