Previous Year NEET Question- Redox Reactions
The oxidizing agent is the species that gains electrons. In this reaction, H2O2 loses two electrons to form H2O. So, H2O2 is the reducing agent.
2017: In a redox reaction, oxidation number of an element changes from negative to positive or from positive to negative.
The reducing agent is the species that loses electrons. In this reaction, Fe2+ loses two electrons to form Fe3+. So, Fe2+ is the reducing agent.