In which of the following reactions, hydrogen behaves as an oxidizing agent?
Correct answer: C. C
- A. A
- B. B
- C. C
- D. D
Explanation
To act as an oxidizing agent the hydrogen itself has to be reduced. The oxidation number of hydrogen in H2 is 0 and in NaH is -1, it is reduced so, is acting as an oxidizing agent.
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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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