Manipal Medical Manipal Medical Solved Paper-2005

  • question_answer
    Which of the following does not contain\[-COOH\] group?

    A)  Aspirin

    B)  Benzole acid

    C)  Picric acid

    D)  All have\[-COOH\]group

    Correct Answer: C

    Solution :

     Picric acid is 2, 4, 6-trinitro phenol. It has three powerful electron-withdrawing groups which stabilise the corresponding phenoxide ion by resonance also. Hence, picric acid is a strong acid\[(p{{K}_{a}}\approx 2)\].


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