Question:
The pair of ions, in which first one acts as a reducing agent and second one acts as an oxidizing agent is:
The pair of ions, in which first one acts as a reducing agent and second one acts as an oxidizing agent is:
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Always identify which ion loses electrons (reducing agent) and which gains electrons (oxidizing agent).
Updated On: Jun 19, 2026
- Pb$^{4+}$, Sn$^{2+}$
- Sn$^{4+}$, Pb$^{4+}$
- Sn$^{2+}$, Pb$^{4+}$
- Sn$^{2+}$, Pb$^{2+}$
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The Correct Option is C
Solution and Explanation
Step 1: Redox definitions.
A reducing agent donates electrons and gets oxidized. An oxidizing agent accepts electrons and gets reduced.
Step 2: Analyze the ions.
- Sn$^{2+}$ can get oxidized to Sn$^{4+}$, acting as a reducing agent.
- Pb$^{4+}$ can get reduced to Pb$^{2+}$, acting as an oxidizing agent.
Step 3: Conclusion.
The pair Sn$^{2+}$ (reducing) and Pb$^{4+}$ (oxidizing) is correct.
A reducing agent donates electrons and gets oxidized. An oxidizing agent accepts electrons and gets reduced.
Step 2: Analyze the ions.
- Sn$^{2+}$ can get oxidized to Sn$^{4+}$, acting as a reducing agent.
- Pb$^{4+}$ can get reduced to Pb$^{2+}$, acting as an oxidizing agent.
Step 3: Conclusion.
The pair Sn$^{2+}$ (reducing) and Pb$^{4+}$ (oxidizing) is correct.
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