Nitrosoamines (R_2N-N=O) are soluble in water. On heating them with concentrated H_2SO_4, they give secondary amines. The reaction is called [J & K CET 2003]

JEE Main Chemistry question

Nitrosoamines () are soluble in water. On heating them with concentrated , they give secondary amines. The reaction is called [J & K CET 2003]

(A)Perkin's reaction
(B)Fries reaction
(C)Liebermann nitroso reactionCorrect
(D)Etard reaction

Answer: (C)

Solution

The regeneration of a secondary amine from its -nitrosoamine by heating with concentrated is part of the Liebermann nitroso reaction sequence, used both as a characteristic colour test for secondary amines and to hydrolyse the

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Question ID VK-150302