Based on the following reduction potential data, which is the strongest reducing

Question

Based on the following reduction potential data, which is the strongest reducing agent? E degree _red = +1.78 V for H_2O_2 (aq) + 2h^4(aq) + 2e^- 2H_2O(i) E degree _red = +0.800 V ag^+ (aq) + e^- Ag(s) E degree _red = -0.130 V for pb^2+ (aq) + 2e^- Ab(s) Ag(s) pb(s) H_2O(l) A voltaic cell must be split into two separate cells, an oxidation and reduction half-cells. The two half-cells must be connected by a_ so ions can freely flow between the two hall-cells to balance the charges or the voltage cell cannot function. salt bridge membrane metallic wire

Explanation / Answer

1. Reducing agents during redox reactions get oxidised. So, the higher the oxidation potential (or lower the reduction potentia, the better will be the oxidizing agent. In the given question the reduction potential is lowest for Pb2+ or we can say oxidation potential is ghighest for Pb(s). So, Pb(s) will be the strong reducing agent.

2. The two half cells are connected by salt bridge.

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