The passage of current through a solution of certain electrolyte results in the evolution of H2(g) at cathode and Cl2(g) at anode. The electrolytic solution is :

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Water

aq. H2SO4

aq. NaCl

aq. CuCl2

answer is C.

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Detailed Solution

∵ENa+∣Na∘EH+/H2∘

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