The electrode potential for Mg electrode varies according to the equation

\(E_{Mg^{2+}/Mg}\ = \ E_{Mg^{2+}/Mg}^{o} \ - \ \frac{0.059}{2}log\frac{1}{[Mg^{2+}]}\) 

The graph of E_{Mg²⁺ / Mg} vs log [Mg²⁺] among the following is:

1.		2.
3.		4.

${\mathrm{E}}_{\mathrm{cell}}^{\mathrm{o}}$= 1.1 V for Daniel cell. Which of the following expressions are correct descriptions of the state of equilibrium in this cell?

(a) 1.1 = K_C

(b) $\frac{2.303\mathrm{RT}}{2\mathrm{F}}{\mathrm{logK}}_{\mathrm{C}}=1.1$

(c) ${\mathrm{logK}}_{\mathrm{C}}=\frac{2.2}{0.059}$

(d) log K_C = 1.1

The correct choice among the given is -

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

For the given cell, Mg | Mg²⁺ || Cu²⁺ | Cu

a.  Mg acts as cathode

b.  Cu acts as cathode

c.  The cell reaction is   \(Mg + Cu^{2+} \rightarrow Mg^{2+} + Cu\)

d.  Cu is the oxidising agent

The correct choice among the given is -