Which among the given acids has the lowest pK | vedclass

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

Question

(C) The $pKa$ value is inversely proportional to the acidic strength of the carboxylic acid. Acidic strength is increased by the presence of electron-

Vedclass · Accepted Answer

Nitroacetic acid

Vedclass · Answer

(C) The $pKa$ value is inversely proportional to the acidic strength of the carboxylic acid. Acidic strength is increased by the presence of electron-withdrawing groups $(EWG)$ due to the $-I$ effect. The strength of the $-I$ effect follows the order: $-NO_2 > -CN > -Cl > -Br$. Among the given options,the nitro group $(-NO_2)$ is the strongest electron-withdrawing group. Therefore,nitroacetic acid $((O_2N)-CH_2-COOH)$ is the strongest acid and has the lowest $pKa$ value.

Which among the given acids has the lowest $pKa$ value?

Similar Questions

The product $(B)$ is:

Consider the acidity of the following carboxylic acids:
$(I)$ $PhCOOH$
$(II)$ $o-NO_2C_6H_4COOH$
$(III)$ $p-NO_2C_6H_4COOH$
$(IV)$ $m-NO_2C_6H_4COOH$
Which of the following is the correct order of acidity?

The correct order of acidity for the following compounds is:

Consider the following sequence of reactions. The major product $P$ is:

Benzoic acid is less acidic than salicylic acid because of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module