Which of the following will give `N_(2)` gas no treatment with nitrous acid `(NaNO_(2)+HCI)` ?

Options

A. `C_(2)H_(5)NH_(2)`
B. `CH_(3)NH_(2)`
C. `(CH_(3))_(2)CH-NH_(2)`
D. All will give `N_(2)`

Answer

D

Explanation

All aliphatic primary amines liberates `N_(2)` gas on treatment with `HNO_(2)`.
`R-NH_(2)+HONO overset(273-278 K)rarr R-OH+N_(2)+H_(2)O`
Since no other class of amines liberate `N_(2)` gas on treatment with `HNO_(2)`, this reaction is used as a test for aliphatic primary amines.