Question

The angle between the bonding orbitals of a molecule $A{X}_3$ with zero dipole moment is

• A. $120^{\circ }$
• B. $109^{\circ }$
• C. $104^{\circ }$
• D. $180^{\circ }$

Answer 1

Answer: (A)

$A{X}_3$ has zero dipole moment.
Thus, it has no lone pair. Thus, $A$ is $s{p}^2$-hybridised.
Hence Bond angle $=120^{\circ }$