Which of these structures has dipole-dipole interactions? Water (H2O), ethyl alcohol (CH3CH2OH), and hexane (C6H14).

Question

Cameron Andrews · Accepted Answer

There will be interactions between dipoles in both water and ethyl alcohol.

Since the oxygen atoms have higher electronegativity values than the carbon and hydrogen atoms they bond to, both of these molecules will theoretically exhibit hydrogen bonding, a form of dipole-dipole. As a result, some parts of these molecules will have partial negative charges, while other parts will have partial positive charges.

Since hexane is a non-polar molecule, there won't be any dipole-dipole interactions; instead, the intermolecular forces between hexane molecules will be dispersion forces.

Serenity Allen · Answer

undefined Hexane (C6H14) is nonpolar and does not exhibit dipole-dipole interactions, in contrast to water (H2O) and ethyl alcohol (CH3CH2OH), which do because of their polar nature.