Give the approximate bond angle for a molecule with tetrahedral electron geometry and bent molecular geometry.
A) 180°
B)

Question

Give the approximate bond angle for a molecule with tetrahedral electron geometry and bent molecular geometry.
A) 180°
B) <180°
C) <109.5°
D) 109.5°
E) <120°

Quizplus · Accepted Answer

A tetrahedral electron geometry has bond angles of 109.5°. However, when the molecule has a bent molecular geometry, one of the bond angles is decreased due to the presence of a lone pair on the central atom. This lone pair creates electron repulsion, causing the bond angles to be slightly less than 109.5°. Therefore, the appropriate answer is C, <109.5°.

Give the Approximate Bond Angle for a Molecule with Tetrahedral