Question

The correct order of acid strength of the following substituted phenols in water at $28^\circ \,C$ is

• A. $p$-nitrophnenol < $p$-fluorophenol < $p$-chlorophenol
• B. $p$-chlorophenol < $p$-fluorophenol < $p$-nitrophnenol
• C. $p$-fluorophenol < $p$-chlorophenol < $p$-nitrophnenol
• D. $p$-fluorophenol < $p$-nitrophnenol < $p$-chlorophenol

Answer 1

Answer: (C)

The order of electron withdrawing tendency from benzene ring i.e.,
$- F <- Cl <- NO _{2}$
$\therefore $ Correct order of acidic strength of substituted phenols will be