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Question:

The chemical nature of hydrogen peroxide is:

oxidising and reducing agent in both acidic and basic medium

reducing agent in basic medium, but not in acidic medium

oxidising and reducing agent in acidic medium, but not in basic medium.

oxidising agent in acidic medium, but not in basic medium.

Solution:

H₂O₂ act as oxidizing agent and reducing agent in acidic medium as well as basic medium.
H₂O₂ Act as oxidant:
H₂O₂ + 2H⁺ + 2e⁻ → 2H₂O (In acidic medium)