Question
Identify the reaction from following so that the standard potential of Cu ^ +2 / Cu electrode is 0.34 V. with respective to SHE ?
MHT CET
Chemistry
Electrochemistry
2026
MHT CET 2026 (16 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. Cu Cu ^ +2 + 2e^-
- B. Cu ^ +2 + 2e^- Cu
- C. Cu ^+ Cu ^ +2 + e^-
- D. Cu ^ +3 Cu ^ +2 + e^-
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
Related: Chemistry — Electrochemistry · All PYQ Banks