J & K CET Engineering J and K - CET Engineering Solved Paper-2007

  • question_answer
    The acid strength obeys the order. Arrange the following carboxylic acids in the decreasing order of their reactivities

    A)  \[C{{H}_{3}}COOH\]

    B) \[ClC{{H}_{2}}COOH\]

    C)  \[C{{l}_{2}}CHCOOH\]

    D) \[C{{l}_{3}}CCOOH\]

    Correct Answer: C

    Solution :

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


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