J & K CET Medical J & K - CET Medical Solved Paper-2007

  • question_answer
    The acid strength obeys the order. Arrange the following carboxylic acids in the decreasing order of their reactivities (1)\[C{{H}_{3}}COOH\]                  (2)\[ClC{{H}_{2}}COOH\] (3)\[{{C}_{12}}CHCOOH\]             (4) \[C{{l}_{3}}CCOOH\]

    A) \[2>4>1>3\]      

    B) \[2>1>3>4\]

    C) \[1>2>3>4\]      

    D) \[1<2<3<4\]

    Correct Answer: D

    Solution :

                    The groups, which have greater\[-I\]effect increases the acidic strength by decreasing negative charge on the carboxylate ion. So, correct order is\[C{{l}_{3}}CCOOH>C{{l}_{2}}CHCOOH>ClC{{H}_{2}}OOH>\]\[C{{H}_{3}}COOH\]


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