MHT CET Chemistry question

Liebermann's nitroso reaction is used to distinguish

(A)primary amines
(B)secondary aminesCorrect
(C)tertiary amines
(D)all of these

Answer: (B)

Solution

In Liebermann's nitroso test the N-nitrosoamine formed from a secondary amine with HNO2 gives a green/blue colour when warmed with phenol and conc. H2SO4, then red on dilution

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Question ID VK-082469