Question

Which one of the following statement is true for a electrochemical cell.

• A. $Cu^{2 +} + e^{-} \rightarrow Cu^{+};Eº = 0.15V$is cathode and $Cu^{2 +} + 2e^{-} \rightarrow Cu;Eº = 0.34V$ is anode
• B. $Eº$ is anode and $Eº$ is cathode
• C. Reduction occurs at $Cu^{+} + e^{-} \rightarrow Cu?$ electrode
• D. Oxidation occurs at $+ 0.49V$ electrode

Answer 1

Answer: (B)

$Eº$ is anode and $Eº$ is cathode

Answer 2

In electrochemical cell $H_{2}$ release at anode and Cu is deposit at the cathode.