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Question
Consider the figure and answer the following question.
Cell ‘A’ has ECell = 2V and Cell ‘B’ has ECell = 1.1V which of the two cells ‘A’ or ‘B’ will act as an electrolytic cell. Which electrode reactions will occur in this cell?
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Solution
Cell ‘B’ will act as electrolytic cell as it has lower emf
∴ The electrode reactions will be:
\[\ce{Zn^{2+} + 2e^{-} -> Zn}\] at cathode
\[\ce{Cu -> Cu^{2+} + 2e^{-}}\] at anode
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