Electrochemistry Result Question 7
7. For the cell, $\mathrm{Zn}(s)\left|\mathrm{Zn}^{2+}(a q) | M^{\mathrm{x}+}(a q)\right| M(s)$, different half cells and their standard electrode potentials are given below.
If $E{ } _{\mathrm{Zn}^2 / \mathrm{Zn}} \quad 0.76 \mathrm{~V}$, which cathode will give a maximum value of $E _{\text {cell }}^{\mathrm{Zn}}$ per electron transferred?
(2019 Main, 11 Jan I)
(a) $\frac{\mathrm{Ag}^{+}}{\mathrm{Ag}}$
(b) $\frac{\mathrm{Fe}^{2+}}{\mathrm{Fe}}$
(c) $\frac{\mathrm{Au}^3}{\mathrm{Au}}$
(d) $\frac{\mathrm{Fe}^{3+}}{\mathrm{Fe}^{2+}}$
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Answer:
Correct Answer: 7. ( a )
Solution:
BETA
