Consider the geometric structure and bond angles of various amines. Which of the following statement — Amines Chemistry Question

💡 Solution & Explanation

The nitrogen atom in amines utilizes four $sp^3$ hybrid orbitals: three to form sigma bonds with C or H, and one to house the non-bonding lone pair (A, B). According to VSEPR theory, lone-pair/bond-pair repulsion is greater than bond-pair/bond-pair repulsion, which compresses the angle from the ideal $109.5^\circ$ down to approximately $107^\circ$ (D). Therefore, stating the angle is generally greater than $109.5^\circ$ is false (C).