alleryStart learning →At which electrode of an electrochemical cell does reduction take place?
AAt the cathode
BAt the anode
CAt the salt bridge
DAt the voltmeter
Answer & Solution
Correct answer: A. At the cathode
1. Every electrochemical cell has one electrode for each half-reaction.
2. Oxidation, the loss of electrons, happens at the anode.
3. Reduction, the gain of electrons, happens at the cathode.
4. The salt bridge carries ions between the compartments and is not an electrode at all.
_Source: OpenStax Chemistry (CC BY 4.0), Chs 7 and 17, section 17.2 Galvanic Cells_
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