JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Properties

  • question_answer
    Which of the following gives aldol condensation reaction [CPMT 2001]

    A)                 \[{{C}_{6}}{{H}_{5}}OH\]              

    B)                 \[{{C}_{6}}{{H}_{5}}-\overset{O\,\,}{\mathop{\overset{||\,\,\,}{\mathop{C-}}\,}}\,{{C}_{6}}{{H}_{5}}\]

    C)                 \[C{{H}_{3}}C{{H}_{2}}-\overset{O\,\,}{\mathop{\overset{||\,\,\,}{\mathop{C-}}\,}}\,C{{H}_{3}}\]         

    D)                 \[{{(C{{H}_{3}})}_{3}}C-\overset{O\,\,}{\mathop{\overset{||\,\,\,}{\mathop{C-}}\,}}\,C{{H}_{3}}\]

    Correct Answer: C

    Solution :

                    Although both \[C{{H}_{3}}C{{H}_{2}}COC{{H}_{3}}\] and \[{{(C{{H}_{3}})}_{3}}CCOC{{H}_{3}}\] contain a-hydrogen, yet \[{{(C{{H}_{3}})}_{3}}CCOC{{H}_{3}}\] does not undergo Aldol condensation due to steric hindrance.


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