Which statement describes the electrodes in an operating electrochemical cell?

Regents Chemistry June 2026

24 Which statement describes the electrodes in an operating electrochemical cell?

(1) Oxidation and reduction both occur at the cathode.

(2) Oxidation and reduction both occur at the anode.

(3) Reduction occurs at the cathode and oxidation occurs at the anode.

(4) Reduction occurs at the anode and oxidation occurs at the cathode.

Solution:

We can memorize the following mnemonics. An Ox (anode is oxidation) and Red Cat (reduction occurs at the cathode). Choice 3 is the correct answer.

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