1.

The amine 'A' when treated with nitrous acid give yellow only substance. The amine A is

Answer»

triethylmine
trimethylamine
aniline
methylphenylamine

Solution :`(2^(@))` Secondary amines `overset("Nitrous acid")to` yellow OILY substance (Nitroso compound).
`CH_(3)NHC_(6)H_(5) overset(HNO_(2))underset("cold") to CH_(3)-underset(C_(6)H_(5))underset(|)(N)-N=0 + H_(2)O`


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