A) \[C{{l}_{2}}CH.COOH\]
B) \[ClC{{H}_{2}}COOH\]
C) \[C{{H}_{3}}COOH\]
D) \[C{{l}_{3}}C.COOH\]
Correct Answer: D
Solution :
Presence of ?I effect chlorine atom increases the acidic nature by withdrawing electrons \[\underset{\begin{smallmatrix} \text{Trichloroacetic} \\ \text{acid (Most}\,\text{acidic)} \end{smallmatrix}}{\mathop{C{{l}_{3}}CCOOH>}}\,\underset{\,\text{Dichloro acetic acid}}{\mathop{C{{l}_{2}}CHCOOH}}\,>\underset{\text{Monochloro}\,\text{acetic acid}}{\mathop{Cl-C{{H}_{2}}-COOH>}}\,\underset{\begin{smallmatrix} \,\,\,\text{Acetic acid} \\ \text{(Least acidic)} \end{smallmatrix}}{\mathop{C{{H}_{3}}COOH}}\,\]
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