Which of the following substances is an electrolyte?

"Products obtained near the electrodes by electrolysis depend on the electrodes" - explain by suitable examples.

During the electrolysis of aqueous $NaCl$ solution, the product formed at the cathode is?

If $6.5 \ g$ of $Mg$ is deposited during the electrolysis of fused $MgCl_2$,what will be the volume of chlorine gas (in $L$) discharged at the electrode at $STP$?

During the electrolysis of fused $NaCl$,which reaction occurs at the anode?

What happens to the $pH$ of the solution during the electrolysis of a dilute aqueous solution of $CuSO_4$ using inert electrodes?