Which of the following compounds contains chl | vedclass

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(C) To find the oxidation state of chlorine $(Cl)$ in the given compounds,we use the rule that the sum of oxidation states of all atoms in a neutral m

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$HClO_3$

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(C) To find the oxidation state of chlorine $(Cl)$ in the given compounds,we use the rule that the sum of oxidation states of all atoms in a neutral molecule is $0$. Let the oxidation state of $Cl$ be $x$. The oxidation state of hydrogen $(H)$ is $+1$ and oxygen $(O)$ is $-2$.$1.$ For $HClO_4$: $1 + x + 4(-2) = 0 \implies x - 7 = 0 \implies x = +7$.$2.$ For $HClO_2$: $1 + x + 2(-2) = 0 \implies x - 3 = 0 \implies x = +3$.$3.$ For $HClO_3$: $1 + x + 3(-2) = 0 \implies x - 5 = 0 \implies x = +5$.$4.$ For $HCl$: $1 + x = 0 \implies x = -1$.Thus,$HClO_3$ contains chlorine in the $+5$ oxidation state.

Which of the following compounds contains chlorine in $+5$ oxidation state?

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