The E~o~ values for all the systems in 10 M NaOH are
more negative than the respective OCP (Table 2). The
cathodic Tafel slopes are also found to be greater than the
respective anodic Tafel slopes. These observations are correlated
with the fact that the cathodic exchange-current density
values are less than the anodic counterparts. It can be
concluded that the overall kinetics of corrosion of zinc and
its alloys in 10 M NaOH are under cathodic control.