In electrochemical series, what is the electrode potential of all metals above hydrogen?
Correct answer: B. Negative
- A. zero
- B. Negative
- C. Positive
- D. Greater than zero
Explanation
In electrochemical series, the elements present above hydrogen have negative reduction potential while those below hydrogen have positive reduction potential.Hence, option B is correct.
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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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