Organic compounds containing nitrogen are a crucial topic for NEET, focusing on amines, amides, nitro compounds, and nitriles. Amines, derived from ammonia, are classified based on the number of alkyl/aryl groups attached to nitrogen (primary, secondary, tertiary). Understanding their basicity (due to the lone pair on nitrogen), nomenclature, and reactions like reduction of nitro compounds is key. Other nitrogen-containing compounds like amides, nitro compounds, and nitriles also have distinct properties and reactions relevant to the exam.