Question

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

• A. ${120}^0$
• B. ${109}^0$
• C. ${104}^0$
• D. ${180}^0$

Answer 1

Answer: (A)

${120}^0$

Without any dipole moment, the molecule will be planar. A will be the central atom with $3X$ atoms equally spaced around it, i.e, at $120$ degrees.