Given that E0Cu2-Cu-0-34 V-E0Ag-Ag-0-80 V-E0Mg3-Mg-2-37 and E0 Al3-Al-1-66Vin which of the following cells the standard free energy decreases is maximum-

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Given that $E_{C u^{2 + | C u}}^{0} = 0.34 V; E_{A g^{+} | A g}^{0} = 0.80 V : E_{M g^{3 +} | M g}^{0} = - 2.37$ and $E_{A l^{3 +} | A l}^{0} = - 1.66 V$
in which of the following cells the standard free energy decreases is maximum:

M g | M g^{2 +} (1 M) | | C u^{2 +} (1 M) | C u

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M g | M g^{2 +} (1 M) | | A g^{+} (1 M) | A g

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A g | A g^{+} (1 M) | | A l^{3 +} (1 M) | A l

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C u | C u^{2 +} (1 M) | | A g^{+} (1 M) | A g

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C u | C u^{2 +} (1 M) | | A g^{+} (1 M) | A g, E^{0} = 0.46 V

Z n | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u, E^{0} = 1.10 V

Z n | Z n^{2 +} (1 M) | | A g^{+} (1 M) | A g

(E^{\circ})

A g / A g^{+} (1 M) ∥ C u^{2 +} (1 M) | C u; E^{\circ} = - 0.46 v o l t

Z n / Z n^{2 +} (1 M) ∥ C u^{2 +} (1 M) | C u; E^{\circ} = + 1.10 v o l t

Z n | Z n^{2 +} (1 M) ∥ A g^{+} (1 M) | A g

C u | C u^{2 +} (1 M) | | A g^{+} (1 M) | A g, E^{o} = 0.46 V

Z n | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u, E^{o} = 1.10 V

Z n | Z n^{2 +} | | A g^{+} (1 M) | A g

9.65 A

A g | A g^{\oplus} | (1 M) | | C u^{2 +} (1 M) | C u

0.463 V

C u | C u_{(1 M)}^{+ +} | | A g_{(1 M)}^{+} | A g

E_{A g}^{o} = 0.800 V

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