reducing agent?

which is more powerful as a reducing agent

kmno4 in alkali or in acid??

2 Answers

  • 1 decade ago
    Favorite Answer

    If you mean what you say, the answer is neither.

    In (MnO4)-, the Mn has an oxidation state of +7, and it can go no higher, so (MnO4)- cannot act as a reducing agent.

    If, though, you mean the opposite to what you asked, then look at the Eo values, and you will see that (MnO4)- has a more positive value in acidic solution.

  • 1 decade ago

    Permanganate (MnO4-) is more easily reduced in an acidic solution (1.51V as compared to 0.59V in neutral/alkali). This means it is a better reducing agent in the alkali solution compared to the acidic solution (reducing agent is oxidized, weaker reduction potential).

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