BHU PMT BHU PMT (Mains) Solved Paper-2010

  • question_answer
    Which of the following hydroxy carboxylic acids undergoes dehydration easily?

    A) \[C{{H}_{2}}OHC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}COOH\]

    B)  \[C{{H}_{3}}CH(OH)C{{H}_{2}}COOH\]

    C)   \[{{C}_{6}}{{H}_{5}}-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{CH}}\,-COOH\]

    D)  \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{CH}}\,-COOH\]

    Correct Answer: A

    Solution :

                     \[\delta \]or\[\gamma -\]hydroxy carboxylic acids readily undergo dehydraction    upon    heating.    Thus,\[C{{H}_{2}}OHC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}COOH\]readily undergoes dehydration.


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