engineering chemistry MCQ #2781

The standard reduction potential for the half-cell: NO₃⁻ → NO₂⁻ is 0.78 V. The potential at pH = 14 is

engineering chemistry MCQ #2781

  1. Question 1

    Q1. The standard reduction potential for the half-cell: NO₃⁻ → NO₂⁻ is 0.78 V. The potential at pH = 14 is

    • A) -0.45 V
    • B) 0.45 V
    • C) -0.90 V
    • D) 0.90 V

    Answer: -0.45 V

    Explanation: Using Nernst equation, considering the reaction and pH dependence.