Year: 2022
Topic: Electrochemistry
Time :
1.
At 298 K, the standard electrode potentials of
\(\displaystyle \frac{Cu^{2+}}{Cu}\), \(\displaystyle \frac{Zn^{2+}}{Zn}\), \(\displaystyle \frac{Fe^{2+}}{Fe}\), and \(\displaystyle \frac{Ag^{+}}{Ag}\) are \(0.34\, \text{V}\), \(-0.76\, \text{V}\), \(-0.44\, \text{ V}\) and \(0.80\, \text{V}\), respectively.
On the basis of standard electrode potential, predict which of the following reaction cannot occur?
\(\displaystyle \frac{Cu^{2+}}{Cu}\), \(\displaystyle \frac{Zn^{2+}}{Zn}\), \(\displaystyle \frac{Fe^{2+}}{Fe}\), and \(\displaystyle \frac{Ag^{+}}{Ag}\) are \(0.34\, \text{V}\), \(-0.76\, \text{V}\), \(-0.44\, \text{ V}\) and \(0.80\, \text{V}\), respectively.
On the basis of standard electrode potential, predict which of the following reaction cannot occur?