Which of the following species can function both as oxidizing as well as reducing agent?

Options

A. `Cl^(-)`
B. `ClO_(4)^(-)`
C. `ClO^(-)`
D. `MnO_4^(-)`

Answer

C

Explanation

`{:("Species","O.N."),(Cl^(-),-1),(ulClO_4^(-),+7),(ulClO^(-),+1),(ulMnO_4^(-),+7),(ulNO_3^(-),+5):}`
In all the given species except `ClO^(-)` , the underlined elements are either in their minimum or maximum oxidation state and hence, they cannot further decrease or increase their oxidation states. In `ClO^(-)` , the oxidation state of Cl can be increased or decreased when it acts as an oxidising or reducing agent.