AP EAPCET 25-Aug-2021 Shift 1 Paper

(b) The reduction potential of the substance is the ability of the substance to be reduced. So, as the reduction potential increases, reducing ability of substance increases.
It means oxidising power of the substance increases. The ability of the substance to make the other substance to lose the electrons increase.
So, order of oxidising power is BrO4−>IO4−>ClO4−.