A) 4 to 2
B) 6 to 4
C) +7 to+2
D) 7 to 4
Correct Answer: C
Solution :
[c] In acid medium \[MnO_{4}^{-}+8{{H}^{+}}+5{{e}^{-}}\to M{{n}^{2+}}+4{{H}_{2}}O\] (O.S. of Mn changes form +7 to +2).You need to login to perform this action.
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