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\[
\begin{array}{l}
\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+\mathrm{I}^{-} \longrightarrow \mathrm{I}_{2}+\mathrm{Cr}^{3+} \\
\mathrm{E}_{\text {cell }}^{0}=0.79 \mathrm{~V}, \mathrm{E}_{\mathrm{Cr}_{2} \mathrm{O}_{7}^{--}}^{0}=1.33 \mathrm{~V}, \mathrm{E}_{\mathrm{l}_{2}}^{0}=?
\end{array}
\]
(A) \( 0.54 \mathrm{~V} \)
(B) \( -0.054 \mathrm{~V} \)
(C) \( +0.18 \mathrm{~V} \)
(D) \( -0.18 \mathrm{~V} \)
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