Which is the stronger reducing agent under standard conditions: Sn$^{2+}$ (to Sn$^{4+}$) or Fe (to Fe$^{2+}$)? Which is the stronger oxidizing agent under standard conditions: Cl$_2$ or MnO$_4^-$? The stronger reducing agent will be oxidized and has the more negative electrode potential. The standard (reduction) potentials are Sn$^{2+}$ to Sn$^{4+}$ E = 0.15 V Fe to Fe$^{2+}$ E = -0.44 V The stronger reducing agent is Fe (to Fe$^{2+}$).
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- A reducing agent is a substance that donates electrons to another substance and is oxidized in the process. - An oxidizing agent is a substance that accepts electrons from another substance and is reduced in the process. Show more…
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