1.

During the electrolysis of an aqueous salt solution, the `pH` in the space near one of the electrode was increased and the other one was decreased. The salt solution was:A. `Cu(NO_(3))_(2)`B. `ZnCl_(2)`C. `NaCl_(conc.)`D. `NaCl` very dilute

Answer» Correct Answer - D
Anode: `2H^(+) + 2e rarr H_(2) pH` increases
Cathode: `2OH^(-) rarr H_(2)O + 1//2O_(2) + 2e pH` decreases.


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