The oxidation number of all the elements in the free state is:
Correct answer: C. 0
- A. 1
- B. 3
- C. 0
- D. -1
- E. -3
Explanation
All the elements have an oxidation number of 0 in the free 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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