Question -
Answer -
In the electrolysis of moltenNaCl, Cl2┬аisobtained at the anode as a by product.
If an aqueous solution of NaCl iselectrolyzed, Cl2┬аwillbe obtained at the anode but at the cathode, H2┬аwill be obtained (instead of Na). This is becausethe standard reduction potential of Na (E┬░= тИТ 2.71 V) is more negative thanthat of H2O (E┬░ = тИТ0.83 V). Hence, H2Owill get preference to get reduced at the cathode and as a result, H2┬аis evolved.
