A) \[C{{H}_{3}}.C{{H}_{2}}COOH\]
B) \[C{{H}_{3}}COOH\]
C) \[C{{H}_{3}}.CHClCOOH\]
D) \[C{{H}_{3}}.C{{H}_{2}}.C{{H}_{2}}COOH\]
Correct Answer: C
Solution :
Presence of electron withdrawing group like \[-N{{O}_{2}}\], \[-Cl\] etc, increases the acidity of carboxylic acids while electron releasing groups like \[-C{{H}_{3}}\], \[{{C}_{2}}{{H}_{5}}\] etc if present, decrease the acidic strength of carboxylic acids. Thus, the order of acidic character is \[C{{H}_{3}}C{{H}_{2}}COOH>C{{H}_{3}}COOH>\] \[C{{H}_{3}}C{{H}_{2}}COOH>C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}COOH\]
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