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When KMnO(4) reacts with KBr in alkaline...

When `KMnO_(4)` reacts with KBr in alkaline medium and gives bromate ion, then oxidation state of Mn changes from +7 to-

A

`+6`

B

`+4`

C

`+3`

D

`+2`

Text Solution

Verified by Experts

The correct Answer is:
B
`2MnO_(4)^(-)+Br^(-)+H_(2)Oto2overset(+4)MnO_(2)+BrO_(3)^(-)+2OH^(-)`
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CHHAYA PUBLICATION-REDOX REACTIONS -ENTRANCE QUESTION
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  16. When KMnO(4) reacts with KBr in alkaline medium and gives bromate ion,...

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