Discussion
In any electrochemical cell, oxidation occurs at the
Answer: B
Correct answer: anode
Oxidation is loss of electrons and it always occurs at the anode, in a galvanic cell and an electrolytic one alike. What changes between the two is the sign: the anode is negative in a galvanic cell, where the reaction is spontaneous and pushes electrons into the external circuit, and positive in an electrolytic cell, where the supply draws them out. Defining the electrodes by the reaction rather than by the sign avoids the confusion.
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