What is the correct order of acidity of compo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

$I > III > II$

Vedclass · Answer

(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

Similar Questions

How many organic products will be formed when the following compound undergoes decarboxylation?
(Image: $A$ substituted cyclopentane ring with two $-COOH$ groups at the same carbon atom,and two $-CH_3$ groups at adjacent carbons.)

What is the product formed when ethyl acetate reacts with an excess of $CH_3MgI$ followed by hydrolysis?

Arrange the following in order of increasing reactivity (least $\to$ most) towards nucleophilic acyl substitution:
$1. CH_3COCH_2CH_3$,$2. CH_3COCl$,$3. CH_3CONHCH_3$

What is formed when $HCOOH$ reacts with concentrated $H_2SO_4$?

Heating chloroform with aqueous sodium hydroxide solution forms:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

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