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  3. NEET

NEET AIPMT SOLVED PAPER 1999

  • question_answer
                Aldol condensation will not take place in:                                                                                 

    A)              HCHO    

    B)             \[C{{H}_{3}}CHO\]             

    C)              \[C{{H}_{3}}COC{{H}_{3}}\]

    D)              \[C{{H}_{3}}C{{H}_{2}}CHO\]

    Correct Answer: A

    Solution :

                Aldol condensation in aldehydes is due to presence of \[\alpha \]-hydrogen atoms. In these aldehydes HCHO does not have \[\alpha \]-hydrogen atom. So, HCHO does not give aldol condensation reaction.


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