AIIMS AIIMS Solved Paper-2002

  • question_answer
    Lucas test is used for:

    A)  aldehydes      

    B)         alkyl halides      

    C)         alcohols        

    D)         acids

    Correct Answer: C

    Solution :

    Lucas test is used to distinguish p, 5 and t alcohols \[ROH+HCl\xrightarrow{ZnC{{l}_{2}}}R-Cl+{{H}_{2}}O\] ? If cloudiness appears immediately-c-alc. ? If cloudiness appears within five minutes secondary alcohol. ? If cloudiness appears on heating or does not appear p-alcohols.


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