Given: Pb²⁺(aq)+ 2e^- Pb(s); E° = -0.13 V Mg²⁺(aq)+ 2e^- Mg(s); E° = -2.38 V Ag⁺(aq)+ e^- Ag(s); E° = 0.80 V 2H⁺(aq)+ 2e^- H₂(g); E° = 0.00 V Under standard-state conditions,which of the following species is the best reducing agent?

Question

Quizplus · Accepted Answer

The best reducing agent is the species with the most negative standard reduction potential (E°) value. Among the given options, Pb has the most negative reduction potential of -0.13 V, indicating it has the strongest tendency to be reduced (i.e., to donate electrons) than any other species. Therefore, Pb is the best reducing agent among the given options.

Given: Pb2+(aq)+ 2e- Pb(s); E° = -0.13 V

Given: Pb²⁺(aq)+ 2e^- Pb(s); E° = -0.13 V