When zinc electrode is coupled with copper electrode in a galvanic cell:
Correct answer: C. Reduction takes place at copper electrode
- A. Reduction takes place at zinc electrode
- B. Oxidation takes place at copper electrode
- C. Reduction takes place at copper electrode
- D. Both Reduction takes place at zinc electrode and Oxidation takes place at copper electrode
Explanation
A galvanic cell is made by joining two half cells. Cu2+ has a higher reduction potential so it is reduced and reduction talks place at Cu electrode. Consequently, oxidation takes place at Zn electrode as it has lower reduction potential (higher oxidation potential).
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About Electrochemistry
Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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