JEE PYQ: Electrochemistry Question 35
Question 35 - 2019 (11 Jan Shift 1)
For the cell $\text{Zn}(s) | \text{Zn}^{2+}(aq) || \text{M}^{x+}(aq) | \text{M}(s)$, different half cells and their standard electrode potentials are given. If $E^0_{\text{Zn}^{2+}/\text{Zn}} = -0.76$ V, which cathode will give a maximum value of $E^0_{\text{cell}}$ per electron transferred?
(1) Ag$^+$/Ag
(2) Fe$^{3+}$/Fe$^{2+}$
(3) Au$^{3+}$/Au
(4) Fe$^{2+}$/Fe
Show Answer
Answer: (1) Ag$^+$/Ag
Solution
Ag$^+$/Ag gives maximum $E^0_{\text{cell}}$ per electron transferred.
BETA
