Question

Which of the following factors does not affect the electrode potential of an electrode?

(a) Nature of the electrode (metal)

(b) Temperature of the solution

(c) Molarity of the solution

(d) Size of the electrode

I have been asked this question at a job interview.

My question comes from Electrochemical Cells topic in chapter Electrochemistry of Chemistry – Class 12

Answer 1

Right option is (d) Size of the electrode

To explain I would say: Electrode potential is the tendency of an electrode to accept or to lose electrons. Electrode potential depends on the nature of the electrode, temperature of the solution and the concentration of metal ions in the solution. It doesn’t depend on the size of the electrode.