For the cell Zn(s)|Zn^ 2+ (aq)||M^ x+ (aq)|M(s), different half cells and their standard electrode potentials...

Question

For the cell Zn(s)|Zn^ 2+ (aq)||M^ x+ (aq)|M(s), different half cells and their standard electrode potentials are given below: | M^ x+ (aq)/M(s) | Au^ 3+ (aq)/Au(s) | Ag^+(aq)/Ag(s) | Fe^ 3+ (aq)/Fe^ 2+ (aq) | Fe^ 2+ (aq)/Fe(s) | |---|---|---|---|---| | E^ _ M^ x+ /M (V) | 1.40 | 0.80 | 0.77 | −0.44 | If E^ _ Zn^ 2+ /Zn = −0.76 V, which cathode will give maximum value of E^ _ cell per electron transferred?

Accepted Answer

(A)

JEE Main 2019 Chemistry question

Solution