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Secondary amine forms yellow oily l...

Secondary amine forms yellow oily liquid nitrons acid , which on warming with phenol and conc .` H_2 SO_4 ` gives a brown or red colour and which at once changes into blue = green . This reaction is called as :

A

Carbyl amine reaction

B

Liebermann's nitroso reaction

C

Babriel pththalimide reaction

D

Hofmann's musted oil reaction

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The correct Answer is:
B
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