STANDARD Chemistry Galvanic Cells MCQ Question
The cell reaction of the galvanic cell : Cu(s)|Cu²⁺(aq)||Hg²⁺(aq)|Hg(l) is
Hg + Cu²⁺ → Hg²⁺ + Cu
Hg + Cu²⁺ → Cu⁺ + Hg⁺
Cu + Hg → Cu⁺ + Hg⁺
Cu + Hg²⁺ → Cu²⁺ + Hg
Correct Answer
Detailed Explanation
In a galvanic cell, the reaction occurs spontaneously. The reduction potential of Cu²⁺/Cu is higher than that of Hg²⁺/Hg, so Cu will oxidize and Hg will reduce, resulting in the reaction Cu + Hg²⁺ → Cu²⁺ + Hg.
Found an issue with this question?
Related Questions
More from Electrochemistry
Calculate the emf of the cell in which of the following reaction takes place Ni(s) + 2Ag⁺(0.002M) ⟶ Ni²⁺(0.160M) + 2Ag(s) Given that E°cell = 1.05V
The molar conductance of NaCl, HCl and CH₃COONa at infinite dilution are 126.45, 426.16 and 91.0 S cm² mol⁻¹ respectively. The molar conductance of CH...
The molar conductivity of 0.007 M acetic acid is 20 S cm² mol⁻¹. What is the dissociation constant of acetic acid? Choose the correct option. [Λ°_H⁺ =...