Thus, normal redox reactions are not possible. Neufeld et. al. reported that electrode potential developed on Zn metal when it is immersed in chloride solution due to charge accumulation through a series of complex reactions. As sea water is highly concentrated solution of chloride, it is expected that if we immerse Zn electrode in sea water we shall get electrode potential. Similar is true for other electrodes also. But, all electrodes get negative potential as only anions are accumulated on electrode. We get potential differences as charge accumulation capacity is different for different electrodes.