Why hydrogen peroxide acts as an oxidising agent as well as a reducing agent.

Explanation

This is due to jthe following reactions.
Oxidising agent :" "`H_(2)O_(2)+2h^(+)+2e^(-) to 2H_(2)O" "("acidic medium")`
`H_(2)O_(2)+ 2e^(-) to 2OH^(-)" "("alkaline medium")`
Reducing agent:" "`H_(2)O_(2) to 2H^(+) + O_(2) + 2e^(-)`