Question

of electrolysis electron releases on which electrode

Answer 1

Electrolysis is the process which occurs in an electrochemical cell when electrons pass from the anode to the cathode via an external circuit connecting the electrodes. For this to occur, there must be a mechanism for charge transport in the electrolyte between the electrodes. This charge transport is due to the movement of ions in the electrolyte. These ions, on approaching the electrodes, undergo electrolysis and either accept electrons from the cathode or release electrons to the anode. In this way chemical change occurs at both electrodes.