A) From 7 to 2
B) From 6 to 2
C) From 5 to 2
D) From 7 to 4
Correct Answer: A
Solution :
In acidic medium \[MnO_{4}^{-}\] changes to \[M{{n}^{2+}},\] hence O.N. changes from \[+7\] to\[+2\].You need to login to perform this action.
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