Measurement of Electrode Potential — MCQ Practice

Which of the following statements about the Standard Hydrogen Electrode (SHE) is INCORRECT?

Given the standard reduction potentials: $E^circ_{\text{Ag}^+/\text{Ag}} = +0.80,\text{V}$ and $E^circ_{\text{Cu}^{2+}/\text{Cu}} = +0.34,\text{V}$. Calculate the standard cell potential ($E^circ_{\text{cell}}$) for the galvanic cell formed by these two half-cells.

For the half-reaction $ext{Ni}^{2+}(\text{aq}) + 2\text{e}^- \rightarrow \text{Ni}(\text{s})$, the standard electrode potential $E^circ = -0.25,\text{V}$. Calculate the electrode potential ($E$) at $298,\text{K}$ when the concentration of $ext{Ni}^{2+}$ is $0.01,\text{M}$. (Given: $log(100) = 2$)

Consider the following standard reduction potentials: $ext{A}^{2+} + 2\text{e}^- \rightarrow \text{A} quad E^circ = -2.37,\text{V}$ $ext{B}^{2+} + 2\text{e}^- \rightarrow \text{B} quad E^circ = -0.76,\text{V}$ $ext{C}^{2+} + 2\text{e}^- \rightarrow \text{C} quad E^circ = +0.34,\text{V}$ Which of the following metals is the strongest reducing agent?

A galvanic cell is constructed using a $ext{Zn}/\text{Zn}^{2+}$ half-cell and a $ext{Ag}/\text{Ag}^+$ half-cell. The standard reduction potentials are $E^circ_{\text{Zn}^{2+}/\text{Zn}} = -0.76,\text{V}$ and $E^circ_{\text{Ag}^+/\text{Ag}} = +0.80,\text{V}$. If the concentration of $ext{Zn}^{2+}$ is $0.1,\text{M}$ and $ext{Ag}^+$ is $0.01,\text{M}$ at $298,\text{K}$, what is the cell potential ($E_{\text{cell}}$)? (Given: $log(10) = 1$, $log(100) = 2$)

Which of the following conditions is NOT considered a standard condition for measuring electrode potential?