Q. Which of the following represents the correct order of the activity in the given compounds?
A) $CH_{3}COOH > BrCH_{2}COOH > ClCH_{2}COOH > FCH_{2}COOH$
B) $FCH_{2}COOH > CH_{3}COOH > BrCH_{2}COOH > ClCH_{2}COOH$
C) $BrCH_{2}COOH > ClCH_{2}COOH > FCH_{2}COOH > CH_{3}COOH$
D) $FCH_{2}COOH > ClCH_{2}COOH > BrCH_{2}COOH > CH_{3}COOH$
Explanation
(d)
The acidity of halogenated acid increases almost proportionately with the increase in electronegativity of the halogen present. Therefore, the correct order is
$FCH_{2}COOH > ClCH_{2}COOH > BrCH_{2}COOH > CH_{3}COOH$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.