Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

Fluorine is a highly electronegative element, it withdraws electron from the neighbouring atoms. Therefore, more is the number of fluorine atoms attached, greater will be the acidity of the molecules. e.g. ${\mathrm{FCH}}_2\mathrm{COOH}$ is more acidic than ${\mathrm{CH}}_3\mathrm{COOH}$. Therefore, correct order of acidity is : $${\mathrm{CF}}_3\mathrm{COOH}>{\mathrm{CF}}_2\mathrm{HCOOH}>{\mathrm{FCH}}_2\mathrm{COOH}>{\mathrm{CH}}_3\mathrm{COOH}$$