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  4. A mixture of methylamine and dimethylamine is given to you. The reagents used to separate the components of the mixture are

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Q. A mixture of methylamine and dimethylamine is given to you. The reagents used to separate the components of the mixture are

COMEDKCOMEDK 2015Amines

Solution:

A mixture of methylamine (1° amine) and dimethylamine (2° amine) can be separated with the help of $C_6H_5SO_2Cl$ and KOH (Hinsberg's method).
Methylamine will form N-methylbenzenesulphonamide which is soluble in KOH. Dimethylamine will form N,N dimcthylbenzene sulphonamide which is insoluble in KOH.