Question

Find oxidation number of Sulphur in $H_{2}S{O}_5$.

Answer 1

Let the oxidation number of sulphur be $x$.

The oxidation number of $O$ and $H$ are $-2$ and $+1$ respectively.

oxidation number of sulphur from the structure $=2+2+1+1=+6$

Therefore, the oxidation number of sulphur is $+6$.