Which of the following compounds is thermally | vedclass

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(A) The thermal stability of oxoacids of chlorine increases with an increase in the oxidation state of the central chlorine atom. The oxidation states

Vedclass · Accepted Answer

$HOClO_3$

Vedclass · Answer

(A) The thermal stability of oxoacids of chlorine increases with an increase in the oxidation state of the central chlorine atom. The oxidation states of $Cl$ in the given compounds are: $HOCl$: $+1$ $HOClO$: $+3$ $HOClO_2$: $+5$ $HOClO_3$: $+7$ As the oxidation state increases,the number of oxygen atoms bonded to the chlorine atom increases,which increases the stability of the molecule due to resonance and the electronegative effect of oxygen atoms. Therefore,$HOClO_3$ (perchloric acid) is the most thermally stable compound among the given options.

Which of the following compounds is thermally most stable?

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