Question

Decide the sequence of basicity of following NH3, R-NH2, R2-NH, R3-N​

Answer 1

Explanation:

R2NH > RNH2 > R3N > NH.

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Answer 2

The order of basicity is as follows-

$R_3N>R_2NH>RNH_2>NH_3$.

• The basicity of a species depends on its electron-donating tendency.
• As the electron-donating tendency of a species increases its basicity also increases.
• As the number of R groups attached to N increases the electron density on the N atom also increases as R groups act as an electron-donating group.
• Thus, the order of basicity follow the below order-
• $R_3N>R_2NH>RNH_2>NH_3$.