In the redox reaction below, which is the reducing agent?

mno2 (s) + 4h+(aq) + 2cl (aq) mn2+(aq) + 2h2o(l) + cl2(g)

Cl⁻ is the reducing agent.

Explanation:

Reduction is the gain of electrons and oxidation is the gain of electrons.

Oxidation half reaction:

2Cl⁻ → Cl₂ + 2e

Here Cl⁻ is losing two electrons to form Cl₂. Cl⁻ is itself undergoing oxidation reaction hence it is a reducing agent. Cl⁻ as a reducing agent provides electrons for the reduction reaction.

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i hope this !