The number of carbon atoms in the amine produced from CH₃CH₂CH₂CH₂CONH₂ via Hoffmann bromamide reaction is:
Pentanamide (CH₃CH₂CH₂CH₂CONH₂, 5 carbons) loses one carbon in the Hoffmann reaction, yielding CH₃CH₂CH₂CH₂NH₂ (4 carbons), as per the PDF.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Chemical Reactions of Amines - Mixed Concept Practice