What is the correct order of acidity of compo | vedclass

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(B) The acidity of benzoic acid derivatives depends on the electronic effects of the substituents attached to the benzene ring.$1$. The $-NO_2$ group

Vedclass · Accepted Answer

$I > III > II$

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(B) The acidity of benzoic acid derivatives depends on the electronic effects of the substituents attached to the benzene ring.$1$. The $-NO_2$ group in $(I)$ is a strong electron-withdrawing group ($-I$ and $-M$ effect),which stabilizes the carboxylate anion,increasing acidity.$2$. The $-OCH_3$ group in $(II)$ is an electron-donating group ($+M$ effect),which destabilizes the carboxylate anion,decreasing acidity.$3$. Benzoic acid $(III)$ serves as the reference point.Therefore,the order of acidity is $4$-Nitrobenzoic acid $(I)$ > Benzoic acid $(III)$ > $4$-Methoxybenzoic acid $(II)$.The correct option is $B$.

What is the correct order of acidity of compounds $(I)$,$(II)$,and $(III)$?
$(I)$ $4$-Nitrobenzoic acid
$(II)$ $4$-Methoxybenzoic acid
$(III)$ Benzoic acid

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What is the correct order of acidity of compounds $(I)$,$(II)$,and $(III)$?$(I)$ $4$-Nitrobenzoic acid$(II)$ $4$-Methoxybenzoic acid$(III)$ Benzoic acid