Consider the following four electrodes: \[ \begin{array}{l} \mathrm{P}=\mathrm{Cu}^{2+}(0.0001 \...
0Consider the following four electrodes:
\[
\begin{array}{l}
\mathrm{P}=\mathrm{Cu}^{2+}(0.0001 \mathrm{M}) / \mathrm{Cu}(\mathrm{s}) \\
\mathrm{Q}=\mathrm{Cu}^{2+}(0.1 \mathrm{M}) / \mathrm{Cu}(\mathrm{s}) \\
\mathrm{R}=\mathrm{Cu}^{2+}(0.01 \mathrm{M}) / \mathrm{Cu}(\mathrm{s}) \\
\mathrm{S}=\mathrm{Cu}^{2+}(0.001 \mathrm{M}) / \mathrm{Cu}(\mathrm{s})
\end{array}
\]
If the standard reduction potential of \( \mathrm{Cu}^{2+} / \mathrm{Cu} \) is \( 10.34 \mathrm{~V} \), the reduction potentials in volts of the above electrodes follow the order.
(a) P \( \) S \( \) R \( \) Q
(b) S \( \) R \( \) Q \( \) P
(c) R \( \) S \( \) Q \( \) P
(d) Q \( \) R \( \) S \( \) P
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