The oxidation number of 'Mn' in KMnO4, is
Correct answer: D. +7
- A. 0
- B. +1
- C. -7
- D. +7
Explanation
In KMnO₄, Mn has an oxidation number of +7. This is determined by balancing the oxidation states of the other elements (K and O) in the compound, and it is one of the highest oxidation states Mn can achieve in compounds.
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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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