An alkyl halide X reacts with NH₃ to give CH₃CH₂CH₂NH₂. X is:
1-Chloropropane (CH₃CH₂CH₂Cl) undergoes ammonolysis with NH₃ to form propan-1-amine (CH₃CH₂CH₂NH₂), as per the PDF’s preparation methods.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Reaction with Nitrous Acid and Diazonium Salts - Part 2