1.

The amine, which reacts with p-toluenesulphonylchlorideto givea clearsolution, which on acidificationgives insoluble compoundis

Answer»

`C_(2)H_(5) NH_(2)`
`(C_(2)H_(5))_(2) NH`
`(C_(2)H_(5))_(3)N`
`CH_(3)NHC_(2)H_(5)`

Solution :`1^(@),2^(@)` and `3^(2)`amines can be distinguishedfrom eachother by p-toluensulphonylchloride(Hinsberg REAGENT)
`1^(@)`amineon sulphonationgives a product, which isinsolublein ACID.
`2^(@)` amine on sulphonationgivessameproduct butissolublein acid.
`3^(@)`amine does notundergo this reaction.


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