List of top Chemistry Questions on Galvanic Cells asked in KEAM

Consider the equilibrium obtained by electrically connecting zinc-amalgam (Zn(Hg)) and HgO electrodes in mercury cell, $ \text{Zn(Hg)} + \text{HgO(s)} \rightleftharpoons \text{ZnO(s)} + \text{Hg(l)} $. Under this equilibrium, what is the relation between the potential of the Zn(Hg) and HgO electrodes measured against the standard hydrogen electrode?}

The standard reduction potential for Zn\(^{2+}\)/Zn, Ni\(^{2+}\)/Ni and Fe\(^{2+}\)/Fe are -0.76, -0.23 and -0.44 V respectively. The reaction X + Y\(^{2+}\) \( \rightarrow \) X\(^{2+}\) + Y will have more negative \( \Delta G \) value when X and Y are

Consider the following electrolytic cells
(i) M(s) | M\textsuperscript{2+(aq), 0.1M || X\textsuperscript{2+}(aq), 0.01M | X(s)
(ii) M(s) | M\textsuperscript{2+}(aq), 0.1M || X\textsuperscript{2+}(aq), 0.1M | X(s) and
(iii) M(s) | M\textsuperscript{2+}(aq), 0.01M || X\textsuperscript{2+}(aq), 0.1M | X(s)
The cell EMF of the above cells are E\textsubscript{1}, E\textsubscript{2} and E\textsubscript{3} respectively. Which one of the following is true?}

Consider the following electrolytic cells
(i) M(s) | M\textsuperscript{2+(aq), 0.1M || X\textsuperscript{2+}(aq), 0.01M | X(s)
(ii) M(s) | M\textsuperscript{2+}(aq), 0.1M || X\textsuperscript{2+}(aq), 0.1M | X(s) and
(iii) M(s) | M\textsuperscript{2+}(aq), 0.01M || X\textsuperscript{2+}(aq), 0.1M | X(s)
The cell EMF of the above cells are E\textsubscript{1}, E\textsubscript{2} and E\textsubscript{3} respectively. Which one of the following is true?}

Consider the following electrolytic cells
(i) M(s) | M\textsuperscript{2+(aq), 0.1M || X\textsuperscript{2+}(aq), 0.01M | X(s)
(ii) M(s) | M\textsuperscript{2+}(aq), 0.1M || X\textsuperscript{2+}(aq), 0.1M | X(s) and
(iii) M(s) | M\textsuperscript{2+}(aq), 0.01M || X\textsuperscript{2+}(aq), 0.1M | X(s)
The cell EMF of the above cells are E\textsubscript{1}, E\textsubscript{2} and E\textsubscript{3} respectively. Which one of the following is true?}