H202 act as a reducing agent

Dear student,

Reducing agent reduces others and itself it gets oxidized, so if in any reaction H₂O₂ as a reducing agent is present then the other substance will get reduced.

HOCl + H₂O₂ → H₃O⁺ + Cl^- + O₂

In this reaction, H₂O₂ is reducing Cl from +1 to -1. Hence, H₂O₂ is acting as a reducing agent.

In all the other reactions H₂O₂ is converted into the water which means it is acting as an oxidizing agent.

Hence, the correct option is (d).

Regards