Question

Given a molecule with the general formula AB, which one of the following would be the most useful in determining whether the molecule was bent or linear?

• A. Ionisation energies
• B. Electron affinities
• C. Dipole moments
• D. Electronegativities

Hint:

To determine the geometry of a molecule, consider its dipole moment. A non-zero dipole moment indicates that the molecule is likely bent.

Answer 1

The Correct Option is C

In determining whether a molecule is bent or linear, dipole moments are the most useful property. A bent molecule will typically exhibit a non-zero dipole moment due to the asymmetry in the distribution of charges, while a linear molecule may have a zero dipole moment if the atoms are arranged symmetrically. Thus, dipole moments provide insight into the molecular geometry.