MHT CET202616 April 2026Morning ShiftChemistryElectrochemistryActual
Identify the reaction from following so that the standard potential of Cu ⁺²/ Cu electrode is 0.34 V. with respective to SHE ?
Options
- ACu Cu ⁺² + 2e^-
- BCu ⁺² + 2e^- Cu
- CCu ^+ Cu ⁺² + e^-
- DCu ⁺³ Cu ⁺² + e^-
Correct answer
B. Cu ⁺² + 2e^- Cu
Step-by-step solution
According to IUPAC convention, the standard electrode potential is defined as the standard reduction potential. For the Cu ⁺²/ Cu electrode, the reduction half-reaction involves the gain of electrons by Cu ⁺² ions to form solid Cu . The reaction is Cu ⁺² + 2e^- Cu , and its standard reduction potential is +0.34 V with respect to the Standard Hydrogen Electrode (SHE). Answer: Cu ⁺² + 2e^- Cu