1.

Select reagent which is/are used in laboratoryto differentiate 1^(@), 2^(@)" and " 3^(@)amines from each other :

Answer»

`NeNO_(2)HCl`
`PhSO_(2)Cl`
`CHCl_(3),KOH`
`CS_(2),HgCl_(2)`

SOLUTION :(a) `1^(@)underset(HCl)OVERSET(NaNO_(2))rarrR-OHoverset(C.A.N)rarr` (Red colour)
`2^(@)underset(HCl)overset(NaNO_(2))rarrR-N-N=O`(Oily liquid)
`3^(@)underset(HCl)overset(NaNO_(2))rarr`Salt
(b) Hinsberg's test can distinguish `1^(@),2^(@)" and "3^(@)` amines.
(c ) Carbhylamine test is given by only `1^(@)` amines.
(d) Mustard oil REACTION is also given by `1^(@)` amines only.


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