A solution of a trivalent metal ion is electrolysed by a current of $5 \mathrm{A}$ for $10 \text{minutes}$, during this time, $1.18 \mathrm{g}$ of metal was plated out. The identity of the metal is _____.

Which of the following reactions occurs at the cathode during charging of storage battery?

In the electrochemical cell,

$\mathrm{Mg}\left(\mathrm{s}\right)\left|{\mathrm{Mg}}^{2+}\left(\mathrm{aq}\right)\Vert {\mathrm{Zn}}^{2+}\left(\mathrm{aq}\right)\right|\mathrm{Zn}\left(\mathrm{s}\right); \mathrm{E}°=+3.13 \mathrm{V}$

The correct plot of ${\mathrm{E}}_{\text{cell }}$ versus $\log \frac{\left[{\mathrm{Mg}}^{2+}\right]}{\left[{\mathrm{Zn}}^{2+}\right]}$ will be represented as