In metal hydrides the oxidation number of hydrogen is:
Correct answer: B. -1
- A. 1
- B. -1
- C. Zero
- D. 2
Explanation
The oxidation number or state of hydrogen in all its compounds except metal hydrides is +1. In metal hydride it is -1.
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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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