For a general redox reaction:
Anode: $Red_1 \to Ox_1^{n_1+} + n_1 e^-$
Cathode: $Ox_2^{n_2+} + n_2 e^- \to Red_2$
Which of the following statements is incorrect?

  • A
    The overall reaction can be written as $n_2 Red_1 + n_1 Ox_2^{n_2+} \rightleftharpoons n_2 Ox_1^{n_1+} + n_1 Red_2$
  • B
    The electrons do not appear in the overall reaction because electrons produced at the anode are consumed at the cathode.
  • C
    Here $n$ is the number of electrons transferred in the redox reaction.
  • D
    If the reaction is carried out reversibly, the electrical work done is equal to the ratio of charge and potential difference through which the charge is moved.

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