Which type of redox reaction takes place at cathode of electrochemical cell?
Correct answer: D. Reduction
- A. Decomposition
- B. Dissociation
- C. Oxidation
- D. Reduction
Explanation
A substance gains electrons, decreasing its oxidation state. Often involves losing oxygen or gaining hydrogen.In an electrochemical cell, reduction occurs at the cathode. Electrons are gained by the substance at the cathode, decreasing its oxidation state.
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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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