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On reduction KMnO₄ by oxalic acid in acidic medium, the oxidation number of Mn changes. What is the magnitude of this change?
  • a)
    From 7 to 2
  • b)
    From 6 to 2
  • c)
    From 5 to 2
  • d)
    From 7 to 4
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
On reduction KMnO by oxalic acid in acidic medium, the oxidation numbe...
In acidic medium reduction of KMnO_4KMnO4​ takes place as follows:

MnO-4 + 5e− + 8H+ →Mn+2 +4H2​O +5e−

So oxidation state of MnMn changes from +7 to +2.
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On reduction KMnO by oxalic acid in acidic medium, the oxidation number of Mn changes. What is the magnitude of this change?a)From 7 to 2b)From 6 to 2c)From 5 to 2d)From 7 to 4Correct answer is option 'A'. Can you explain this answer?
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