For the cell Zn(s) |Zn2+ (aq)| |Mx+ (aq)| M(s), different half cells and their standard electrode potentials are given below : .tg {border-collapse:collapse;border-spacing:0;} .tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;} .tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;} .tg .tg-a0j4{font-size:18px;text-align:left} .tg .tg-nx8p{font-size:18px;text-align:left;vertical-align:top} Mx+ (aq)/M(s) Au3+(aq)/Au(s) Ag+(aq)/Ag(s) Fe3+(aq)/Fe2+ (aq) Fe2+(aq)/Fe(s) E0Mx+/M/(V) 1.40 0.80 0.77 $-$0.44 If $E_{z{n^{2 + }}/zn}^0$ = $-$ 0.76 V, which cathode will give maximum value of Eocell per electron transferred?

Question

For the cell Zn(s) |Zn²⁺ (aq)| |M^x+ (aq)| M(s), different half cells and their standard electrode potentials are given below :

M^x+ (aq)/M(s)	Au³⁺(aq)/Au(s)	Ag⁺(aq)/Ag(s)	Fe³⁺(aq)/Fe²⁺ (aq)	Fe²⁺(aq)/Fe(s)
E⁰_M^x+_/M/(V)	1.40	0.80	0.77	$-$0.44

If $E_{z{n^{2 + }}/zn}^0$ = $-$ 0.76 V, which cathode will give maximum value of E^o_cell per electron transferred?

Ag⁺/Ag

Fe³⁺/Fe²⁺

Au³⁺/Au

Fe²⁺/Fe

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