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Q.
Chloroacetic acid is a stronger acid than acetic acid. This can be explained using
JamiaJamia 2012
Solution:
$ -Cl $ is an electron withdrawing (i.e., $ -I $ showing) group. It withdraws electrons when attached to the carboxylic acid and decreases the electron density on the oxygen atom. This will facilitate the release of by making $ O-H $ bond more polar and thus $ -Cl $ increases the acidity of acetic acid when attached at a position because of $ -I $ effect.