The oxidation states of S atoms in Caro's aci | vedclass

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(A) Caro's acid is $H_2SO_5$ (Peroxomonosulphuric acid).In $H_2SO_5$,there is one peroxy linkage $(-O-O-)$. Let the oxidation state of $S$ be $x$. The

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$+6, +6$

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(A) Caro's acid is $H_2SO_5$ (Peroxomonosulphuric acid).In $H_2SO_5$,there is one peroxy linkage $(-O-O-)$. Let the oxidation state of $S$ be $x$. The oxidation states of $H$ is $+1$ and $O$ is $-2$ (for three atoms) and $-1$ (for two peroxy atoms).$2(+1) + x + 3(-2) + 2(-1) = 0 \implies 2 + x - 6 - 2 = 0 \implies x = +6$.Marshall's acid is $H_2S_2O_8$ (Peroxodisulphuric acid).In $H_2S_2O_8$,there is one peroxy linkage $(-O-O-)$. Let the oxidation state of $S$ be $x$. The oxidation states of $H$ is $+1$ and $O$ is $-2$ (for six atoms) and $-1$ (for two peroxy atoms).$2(+1) + 2x + 6(-2) + 2(-1) = 0 \implies 2 + 2x - 12 - 2 = 0 \implies 2x = 12 \implies x = +6$.Thus,the oxidation state of $S$ in both acids is $+6$.

The oxidation states of $S$ atoms in Caro's acid and Marshall's acid are

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