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Consider the Following Standard Reduction Potentials in Acid Solution The Strongest Oxidizing Agent Listed Above Is
A) Cr3+

Question 108

Multiple Choice

Consider the following standard reduction potentials in acid solution: Cr3++3eCrE=0.74 VCo2++2eCoE=0.28 VMnO4+8H++5eMn2++4H2OE=+1.51 V\begin{array}{ll}\mathrm{Cr}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Cr} & \mathrm{E}^{\circ}=-0.74 \mathrm{~V} \\\mathrm{Co}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Co} & \mathrm{E}^{\circ}=-0.28 \mathrm{~V} \\\mathrm{MnO}_{4^{-}}+8 \mathrm{H}^{+}+5 \mathrm{e}^{-} \rightarrow \mathrm{Mn}^{2+}+4 \mathrm{H}_{2} \mathrm{O} & \mathrm{E}^{\circ}=+1.51 \mathrm{~V}\end{array} The strongest oxidizing agent listed above is


A) Cr3+.
B) Cr.
C) Mn2+.
D) Co2+.
E) MnO4-.

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