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During the electrolysis of an aqueous sa...

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

Text Solution

Verified by Experts

The correct Answer is:
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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