Arrange the following amines in order of decreasing basicity (most to least) in the gas phase: NH₃
CH₃CH₂CH₂NH₂
(CH₃CH₂CH₂) ₂NH
(CH₃CH₂CH₂) ₃N
I
II
III
IV

Question

Arrange the following amines in order of decreasing basicity (most to least)in the gas phase: NH₃ CH₃CH₂CH₂NH₂ (CH₃CH₂CH₂)₂NH (CH₃CH₂CH₂)₃N I II III IV

Quizplus · Accepted Answer

In the gas phase, basicity is influenced by the availability of the lone pair of electrons on nitrogen. Tertiary amines (IV) are generally more basic than secondary (III) and primary amines (II), which are more basic than ammonia (I). Thus, the order is IV > III > II > I.

Arrange the Following Amines in Order of Decreasing Basicity (Most