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  4. Which compound amongst the following has the highest oxidation number of Mn?

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Q. Which compound amongst the following has the highest oxidation number of $Mn$?

Redox Reactions

Solution:

$KMnO_{4} \to +1+ x - 8 = 0 \Rightarrow x = +7$
$K_{2}MnO_{4} \to+2 + x - 8 = 0 \Rightarrow x = +6$
$MnO_{2} \to x - 4 = 0 \Rightarrow x=+4$
$Mn_{2}O_{3} \to 2x - 6 = 0 \Rightarrow x = +3$