The standard reduction potentials at 298 K for the following half reactions are given below. Zn2+ + 2e' Zn, E°Zn2+ |Zn = '0.762 V; Cr3+ + 3e' Cr, E°Cr3+ | Cr = '0.740 V, 2H+ + 2e' H2 (g), E°H+ | H2 = 0.00 V, Fe3+ + e' Fe2+, E° Fe3+ | Fe2+ = 0.770 V Which is the strongest reducing agent?

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The standard reduction potentials at 298 K for the following half reactions are given below. Zn2+ + 2e' Zn, E°Zn2+ |Zn = '0.762 V; Cr3+ + 3e' Cr, E°Cr3+ | Cr = '0.740 V, 2H+ + 2e' H2 (g), E°H+ | H2 = 0.00 V, Fe3+ + e' Fe2+, E° Fe3+ | Fe2+ = 0.770 V Which is the strongest reducing agent?