Consider the Following Standard Reduction Potentials in Acid Solution The Strongest Reducing Agent Among Those Shown Above Is
A)

question 87

Multiple Choice

Consider the following standard reduction potentials in acid solution: $\begin{array}{ll}&\underline{\mathrm{E}^\circ(V) }\\\mathrm{Al}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Al}(\mathrm{~s}) & -1.66 \\\mathrm{AgBr}(\mathrm{~s}) +\mathrm{e}^{-} \rightarrow \mathrm{Ag}(\mathrm{~s}) +\mathrm{Br}^- & +0.07 \\\mathrm{Sn}^{4+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Sn}^{2+} & +0.14 \\\mathrm{Fe}^{3+}+\mathrm{e}^{-} \rightarrow \mathrm{Fe}^{2+} & +0.77\end{array}$ The strongest reducing agent among those shown above is

• A) Fe³⁺.
• B) Fe²⁺.
• C) Br^-.
• D) Al³⁺.
• E) Al.

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Definitions:

Biogeochemical Cycles

These are natural pathways by which essential elements of living matter are circulated through the biotic (living) and abiotic (non-living) components of the Earth.

Nonbiological Reservoirs

Environments or materials that can harbor or transmit disease-causing organisms without having biological functions themselves.

Aquifers

Underground layers of water-bearing rock or materials that can yield water for use.

Guano

The accumulated excrement of seabirds or bats, used historically as a highly effective fertilizer because of its high nitrogen, phosphate, and potassium content.