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The electrode potentials for
\( \mathrm{P} \)
\[
\mathrm{Cu}^{2+}{ }_{(\mathrm{aq})}+e^{-} \rightarrow \mathrm{Cu}^{+}(\mathrm{aq})
\]
W
and \( \mathrm{Cu}_{(\mathrm{aq})}^{+}+e^{-} \rightarrow \mathrm{Cu}_{(\mathrm{s})} \)
are \( +0.15 \mathrm{~V} \) and \( +0.50 \mathrm{~V} \) respectively. The value
of \( \mathrm{E}^{\circ} \mathrm{Cu}^{2+} / \mathrm{Cu} \) will be :-
(1) \( 0.500 \mathrm{~V} \)
(2) \( 0.325 \mathrm{~V} \)
(3) \( 0.650 \mathrm{~V} \)
(4) \( 0.150 \mathrm{~V} \)
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