Q. Among the following, the most acidic is
A) $CH_{3}COOH$
B) $ClCH_{2}COOH$
C) $Cl_{2}CHCOOH$
D) $Cl_{2}CHCH_{2}COOH$
Explanation
(c)
Proton donors are acids. Electrons withdrawing groups increase acidity. More the number of electrons withdrawing groups more will be acidity. Closer the electrons withdrawing group to proton more will be acidity.
$\therefore Cl_{2}CHCOOH$, has highest acidity among $CH_{3}COOH,\ ClCH_{2}COOH,\ Cl_{2}CHCOOH,\ Cl_{2}CHCH_{2}COOH$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.