QuestionOrganic / secondary amines with HNO₂
The major product formed in the following reaction is:


- (a) o-Nitro-N-methylaniline
- (b) o-Nitroso-N-methylaniline
- (c) 2,4-Dinitro-N-methylaniline
- (d) N-Nitroso-N-methylaniline
Answer: (d)
Secondary amines react with HNO₂ (NaNO₂/HCl) to give N-nitrosoamines (yellow oil): C₆H₅N(CH₃)–N=O → (d). (Liebermann nitroso test.)