Standard electrode potentials of Na, Ni, and Cl are given. Which one has the highest reducing power?$\text{Cl}_{2}(g) + 2e^- \&\rightarrow 2\text{Cl}^- $$\text{Ni}^{2+} + 2e^- \&\rightarrow \text{Ni}(s) $$\text{Na}^+ + e^- \&\rightarrow \text{Na}(s) $