Chemistry - AMINES Question with Solution | TestHub

The carbylamine (isocyanide) test is a specific identification test given exclusively by primary (1°) aliphatic and aromatic amines containing the –NH₂ group. Secondary (2°) and tertiary (3°) amines do not show a positive response to this reaction.

Analyzing the given compounds based on their amine classification:

Positive test (1° amines): (a), (b), (e), (g), and (h) all possess a free –NH₂ group.

Negative test (2° or 3° amines): (c), (d), (f), and (i) contain secondary (–NH–) or tertiary (–N–) linkages.

Thus, exactly 5 compounds show a positive test, confirming the provided answer.