The compound that can work both as an oxidising and reducing agent is
As we learnt in
Rules for Oxidation Number -
The oxidation number of oxygen in most compounds is -2. There are two exceptions.
In peroxide (H2O2; Na2O2), the oxidation number is -1.
- wherein
In superoxide e.g. KO2 its oxidation number is -1/2.
In the oxidation number of o is -1 which makes it possible for to act both as oxidising or reducing agent.
Solution is 2
Option 1)
Incorrect
Option 2)
Correct
Option 3)
Incorrect
Option 4)
Incorrect