A) \[{{\text{H}}_{\text{2}}}\]is cathode, Cu is anode
B) Oxidation occurs at Cu electrode
C) Reduction occurs at \[{{\text{H}}_{\text{2}}}\] electrode
D) \[{{\text{H}}_{\text{2}}}\] is anode, Cu is cathode
Correct Answer: D
Solution :
In the electrochemical cell \[{{H}_{2}}|{{H}^{+}}|\,|C{{u}^{2+}}|Cu\] oxidation takes place at hydrogen electrode and reduction takes place at copper electrode. In electrochemical cell oxidation takes place at anode and reduction takes place at cathode. So, \[{{\text{H}}_{\text{2}}}\] electrode behaves as anode and copper electrode behaves as cathode.
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