Which of the following is the strongest acid?

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

Question

(C) The acidity of substituted phenols depends on the electron-withdrawing or electron-donating nature of the substituent. $-NO_2$ is a strong electro

Vedclass · Accepted Answer

p-Nitrophenol

Vedclass · Answer

(C) The acidity of substituted phenols depends on the electron-withdrawing or electron-donating nature of the substituent. $-NO_2$ is a strong electron-withdrawing group $(EWG)$ due to both $-I$ and $-M$ effects. $p$-Nitrophenol is more acidic than $o$-nitrophenol because $o$-nitrophenol exhibits intramolecular hydrogen bonding,which stabilizes the molecule and makes the release of the $H^+$ ion more difficult. $p$-Chlorophenol is less acidic than $p$-nitrophenol because $-Cl$ is a weaker electron-withdrawing group than $-NO_2$. Therefore,$p$-nitrophenol is the strongest acid among the given options.

Similar Questions

Explain the classification of phenols with examples.

The major product of the following reaction is:

Which one of the following compounds gives aspirin on reacting with acetic anhydride in the presence of conc. $H_2SO_4$?

Arrange the following compounds in decreasing order of their acidity.

When heated with $NH_3$ under pressure alone or in the presence of zinc chloride,phenols are converted into:

Vedclass Test Series

Exam Paper Generator

Online Exam Module