The product of CH₃CH₂NH₂ reacting with HNO₂ at 273-278 K is:
Ethylamine (CH₃CH₂NH₂) reacts with HNO₂ to form ethanol (CH₃CH₂OH) and N₂, as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Preparation - Hoffmann Bromamide and Reduction of Nitro Compounds