chapter 5 electrochemistry class 12 chemistry textbook solution

    2. Answer the following in one or two sentences.

    viii. Formulate a cell from the following electrode reactions

    1. Au3+(aq) + 3e– → Au(s)
    2. Mg(s) → Mg2+(aq) + 2e–

    Answer:-

    The oxidation half-reaction at the anode is:

    Mg(s) → Mg(aq)2+ + 2e-

    The reduction half-reaction at the cathode is:

    Au(aq)3+ + 3e- → Au(s)

    Notation for anode: Mg(s) Mg(aq)2+
    Notation for cathode: Au(aq)3+ Au(s)

    Cell formula:

    Mg(s) | Mg(aq)2+ | Au(aq)3+ | Au(s)

    Q 2.7
    Q 2.8
    Q 2.9

    chapter 5 elctrochemistry textbook solution page 118