STANDARDChemistry-Electrochemistry
STANDARD Chemistry Galvanic Cells MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The cell reaction of the galvanic cell : Cu(s)|Cu²⁺(aq)||Hg²⁺(aq)|Hg(l) is
A
Hg + Cu²⁺ → Hg²⁺ + Cu
B
Hg + Cu²⁺ → Cu⁺ + Hg⁺
C
Cu + Hg → Cu⁺ + Hg⁺
D
Cu + Hg²⁺ → Cu²⁺ + Hg
Correct Answer
Option D
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?