engineering chemistry MCQ #2765

For the reaction, Cu²⁺ + 2e^- → Cu, E° = +0.34 V. The E° for the reaction Cu → Cu²⁺ + 2e^- is

engineering chemistry MCQ #2765

  1. Question 1

    Q1. For the reaction, Cu²⁺ + 2e^- → Cu, E° = +0.34 V. The E° for the reaction Cu → Cu²⁺ + 2e^- is

    • A) +0.34 V
    • B) -0.34 V
    • C) +0.68 V
    • D) -0.68 V

    Answer: -0.34 V

    Explanation: The E° for the reverse reaction is the negative of the given E°.