Primary and secondary amines are distinguishe | vedclass

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(C) Primary amines $(1^o)$ react with nitrous acid $(HNO_2)$ to form aliphatic diazonium salts,which are unstable and decompose to evolve nitrogen gas

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$HNO_2$

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(C) Primary amines $(1^o)$ react with nitrous acid $(HNO_2)$ to form aliphatic diazonium salts,which are unstable and decompose to evolve nitrogen gas $(N_2)$ and form alcohols: $R-NH_2 + HNO_2 	o R-OH + N_2 + H_2O$. Secondary amines $(2^o)$ react with nitrous acid $(HNO_2)$ to form $N$-nitrosoamines,which are yellow oily compounds: $R_2NH + HNO_2 	o R_2N-N=O + H_2O$.

Primary and secondary amines are distinguished by

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