Brine is electrolysed by using inert electrodes. The reaction at anode is ________.

_{Oxidation takes place at the anode. E°cell by convention represents reduction potential. A higher positive value of E°cell means reduction is easier to happen than oxidation. Therefore, for oxidation reaction (ii) is preferred over reaction (i) but this does not happen. Reaction (ii) does not take place because oxidation of water to oxygen is not kinetically favoured and required excess potential(over-potential)}