The oxidation states of S in H_2S_2O_7 are: | vedclass

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(A) $H_2S_2O_7$ is known as oleum or pyrosulphuric acid.In the structure of $H_2S_2O_7$, each sulphur atom is bonded to three oxygen atoms via double

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$VI, VI$

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(A) $H_2S_2O_7$ is known as oleum or pyrosulphuric acid.In the structure of $H_2S_2O_7$, each sulphur atom is bonded to three oxygen atoms via double bonds (contributing $+2$ each) and one oxygen atom via a single bond (contributing $+1$), and one hydroxyl group (contributing $+1$).Therefore, the oxidation state for each sulphur atom is $+2 + 2 + 1 + 1 = +6$.Thus, the oxidation states of both sulphur atoms are $VI$ and $VI$.

The oxidation states of $S$ in $H_2S_2O_7$ are:

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