Aniline gets coloured on standing in air for a long time. Why? Or Why – InterviewSolution

1.	Aniline gets coloured on standing in air for a long time. Why? Or Why does aniline turn blackish brown in on open air.
Answer» Solution :Due to strong electron-donating effect (+R-effect) of the `NH_(2)` group, the electron density ono the benzene ring increases. As a result, aniline is easily oxidised on standing in AIR for a long time to FORM coloured blackish BROWN products.

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