Give examples and suggest reasons for the following features of the transition metal chemistry: (i) The highest oxidation state is exhibited in oxoanions of a metal.
Give examples and suggest reasons for the following features of the transition metal chemistry: (i) The highest oxidation state is exhibited in oxoanions of a metal.

(i) Oxygen is a strong oxidising agent due to its high electronegativity and small size. So, oxo-anions of a metal have the highest oxidation state. For example, in , the oxidation state of Mn is +7.