The acidity of the following compounds follow | vedclass

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(C) The correct acidity order is $III > IV > I > II$.In substituted phenols,electron-withdrawing groups $(EWG)$ like the nitro $(-NO_2)$ group increas

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$III > IV > I > II$

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(C) The correct acidity order is $III > IV > I > II$.In substituted phenols,electron-withdrawing groups $(EWG)$ like the nitro $(-NO_2)$ group increase acidity by stabilizing the phenoxide ion through delocalization of the negative charge.$p$-Nitrophenol $(III)$ is more acidic than $m$-nitrophenol $(IV)$ because the $-NO_2$ group at the para position exerts both $-I$ and $-R$ effects,whereas at the meta position,it only exerts the $-I$ effect.Phenol $(I)$ is less acidic than nitrophenols but more acidic than $p$-methoxyphenol $(II)$.$p$-Methoxyphenol $(II)$ contains a methoxy $(-OCH_3)$ group,which is an electron-donating group $(EDG)$ due to the $+R$ effect,destabilizing the phenoxide ion and decreasing the acidity.

The acidity of the following compounds follows the order:
$I$: Phenol
$II$: $p$-Methoxyphenol
$III$: $p$-Nitrophenol
$IV$: $m$-Nitrophenol

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The acidity of the following compounds follows the order:$I$: Phenol$II$: $p$-Methoxyphenol$III$: $p$-Nitrophenol$IV$: $m$-Nitrophenol