August 2019 NY Regents Chemistry Exam
25 Which statement describes the reactions in an electrochemical cell? (1) Oxidation occurs at the anode, and reduction occurs at the cathode. (2) Oxidation occurs at the cathode, and reduction occurs at the anode. (3) Oxidation and reduction both occur at the cathode.
(4) Oxidation and reduction both occur at the anode.
Solution: A good mnemonic to memorize for the electrochemistry chapter is : Red Cat and An Ox. Red Cat stands for reduction is at the cathode. An Ox stands for anode is oxidation.
Answer: 1
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