Which test produces a foul odor with primary aliphatic amines?
The carbylamine test (CHCl₃ + alcoholic KOH) with primary aliphatic amines forms isocyanides, which have a foul odor, as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Nomenclature, Structure and Preparation - Ammonolysis and Gabriel Synthesis