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AIIMS AIIMS Solved Paper-2007

  • question_answer
    The hydrocarbon which does decolourise alkaline \[KMn{{O}_{4}}\] solution and also does not give any precipitate with ammoniacal silver nitrate is

    A)  benzene            

    B)         acetylene          

    C)         propyne             

    D)         butyne-1

    Correct Answer: A

    Solution :

    Benzene is resonance stabilised and hence does not react with alk. \[KMn{{O}_{4}}\] and it has no acidic hydrogen. Therefore, it does not react with ammoniacal \[AgN{{O}_{3}}\] solution.


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