Manipal Medical Manipal Medical Solved Paper-2004

  • question_answer
    Which of the following reagent can distinguish between  1-Butyne and 2-Butyne?

    A)  Aqueous\[NaOH\]

    B)  Bromine water

    C)  Fehlings solution

    D)  Ammonical\[AgN{{O}_{3}}\]

    Correct Answer: D

    Solution :

     \[\underset{(1-Butyne)}{\mathop{{{H}_{3}}C-C{{H}_{2}}C\equiv CH}}\,\xrightarrow[N{{H}_{4}}OH]{AgN{{O}_{3}}}\underset{\begin{smallmatrix}  (Silver-1 \\  butynide) \end{smallmatrix}}{\mathop{C{{H}_{3}}C{{H}_{2}}C\equiv CAg}}\,\] \[\underset{2-Butyne}{\mathop{{{H}_{3}}C-C\equiv C-C{{H}_{3}}}}\,\xrightarrow[N{{H}_{4}}OH]{AgN{{O}_{3}}}\]No reaction


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