engineering chemistry MCQ #2801

For the reaction: 2Ag⁺ + Cu → 2Ag + Cu²⁺, E°cell = +0.46 V. The E° for Ag⁺/Ag is

engineering chemistry MCQ #2801

  1. Question 1

    Q1. For the reaction: 2Ag⁺ + Cu → 2Ag + Cu²⁺, E°cell = +0.46 V. The E° for Ag⁺/Ag is

    • A) +0.80 V
    • B) +0.34 V
    • C) +0.46 V
    • D) -0.80 V

    Answer: +0.80 V

    Explanation: E°cell = E°(Ag⁺/Ag) - E°(Cu²⁺/Cu), 0.46 = E°(Ag⁺/Ag) - 0.34, so E°(Ag⁺/Ag) = 0.80 V.