Q. In the electrochemical cell, $H_{2}(g)1\ atm\left| \ H^{+}\ (1\ M) \right|\left| {\ Cu}^{2 +}(1\ M) \right|\ Cu(s)$ Which one of the following statements is true?
A) $H_{2}$ is anode, Cu is cathode
B) Cu is anode, $H_{2}$ is cathode
C) Oxidation occurs at Cu electrode
D) Reduction occurs at $H_{2}$ electrode
Explanation
(a)
$H_{2}$ is anode because oxidation takes place. Cu is cathode because reduction takes place
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.