The oxidation potential of \( \mathrm{Zn}, \mathrm{Cu}, \mathrm{Ag}, \mathrm{H}_{2} \) and \( \m...
The oxidation potential of \( \mathrm{Zn}, \mathrm{Cu}, \mathrm{Ag}, \mathrm{H}_{2} \) and \( \mathrm{Ni} \) are 0.76 , \( -0.34,-0.80,-0.00,0.25 \) Volt respectively. Which of the following reaction will provide maximum voltage?
(a) \( \mathrm{Zn}+\mathrm{Cu}^{2+} \rightarrow \mathrm{Cu}+\mathrm{Zn}^{2+} \)
(b) \( \mathrm{Zn}+2 \mathrm{Ag}^{+} \rightarrow 2 \mathrm{Ag}+\mathrm{Zn}^{2+} \)
(c) \( \mathrm{H}_{2}+\mathrm{Cu}^{2+} \rightarrow 2 \mathrm{H}^{+}+\mathrm{Cu} \)
(d) \( \mathrm{H}_{2}+\mathrm{Ni}^{2+} \rightarrow 2 \mathrm{H}^{+}+\mathrm{Ni} \)
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