BCECE Medical BCECE Medical Solved Papers-2008

  • question_answer
    Aldehyde with \[N{{H}_{2}}\,.\,N{{H}_{2}}\] forms

    A)  hydrazones    

    B)  aniline

    C)  nitrobenzene   

    D)  None of these

    Correct Answer: A

    Solution :

    Aldehydes and ketones with \[N{{H}_{2}}\,.\,\,N{{H}_{2}}\] forms hydrazones. \[RCHO+{{H}_{2}}N\,.\,N{{H}_{2}}\to \underset{aid.\text{ }hydrazbne}{\mathop{RCH=N\,.\,N{{H}_{2}}}}\,+{{H}_{2}}O\] \[{{R}_{2}}CO+{{H}_{2}}N\,.\,N{{H}_{2}}\to {{R}_{2}}C=N\,.\,N{{H}_{2}}+{{H}_{2}}O\]


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