Q10: In amines, the nitrogen atom is A and B hybridised,... - Amines - Chemistry CUET UG 22-05-2023 Shift 3 Paper | Agrigyan

In amines ($\text{R-NH}_2$, $\text{R}_2\text{NH}$, $\text{R}_3\text{N}$):

• Nitrogen forms 3 covalent $\sigma$ bonds, so it is trivalent (A).
• The nitrogen atom possesses 3 bond pairs and 1 lone pair of electrons (steric number = 4), meaning it is $sp^3$ hybridised (B).
• Due to the presence of one lone pair, the geometry (shape) is distorted tetrahedral, specifically pyramidal (C).