Question:
The electrode potential of $\mathrm{M}^{2+} / \mathrm{M}$ of $3 \mathrm{~d}$-series elements shows positive value of:
Correct Option: , 4
Solution:
Only copper shows positive value for electrode
potential of $\mathrm{M}^{2+} / \mathrm{M}$ of $3 \mathrm{~d}$-series elements.
$\mathrm{E}^{\ominus} / \mathrm{V}_{\left(\mathrm{Cu}^{2+} / \mathrm{Cu}\right)}:+0.34$