First slide

Electrolysis

Question

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 :

Easy

A

Water
B

aq. H₂SO₄
C

aq. NaCl
D

aq. CuCl₂

Solution

$∵ E_{{Na}^{+} ∣ Na}^{\circ} < E_{H^{+} / H_{2}}^{\circ} E_{{Cu}^{2 +} ∣ Cu}^{\circ} > E_{H^{+} / H_{2}}^{\circ}$

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