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Q. The average oxidation number of $Br$ in $Br _{3} O _{8}$ is

Redox Reactions

Solution:

Let the oxidation number of $Br$ is $x$.
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$3 x+(-16) =0$
$\Rightarrow x =\frac{16}{3}$
Thus, the average oxidation number of $Br$ in $Br _{3} O _{8}$ is $\frac{16}{3}$.