AFMC AFMC Solved Paper-2010

  • question_answer
    Primary, secondary and tertiary amines can be distinguished by

    A)  SchifPs test      

    B)  Fehling's test

    C)  Tollen's test     

    D)  Hinsberg test

    Correct Answer: D

    Solution :

                     Hinsberg's   reagent   (benzene   sulphonyl chloride) is used to distinguish \[{{1}^{o}},{{2}^{o}}\] and \[{{3}^{o}}\] amines. With Hinsberg's reagent, \[{{1}^{o}}\]amines   give a sulphonamide, soluble in alkali,\[{{\text{2}}^{\text{o}}}\]amines form a sulphonamide, insoluble in alkali, while \[{{3}^{o}}\] amines do not react at all.


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