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Question: The oxidation number of \(Mn\) in \(MnO_{4}^{- 1}\) is....

The oxidation number of MnMn in MnO4−1MnO_{4}^{- 1} is.

A
  • 7
B

– 5

C
  • 6
D
  • 5
Answer
  • 7
Explanation

Solution

MnMn shows + 7 oxidation state in MnO4−1MnO_{4}^{- 1}

MnO4−1∗\overset{*}{MnO_{4}^{- 1}}

x+(−2×4)=−1x + ( - 2 \times 4) = - 1

x−8=−1x - 8 = - 1

x=−1+8=+7x = - 1 + 8 = + 7.