The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from
A)dipole-dipole forces.
B)London dispersion forces.
C)hydrogen bonding.
D)ion-dipole interactions.
E)ionic bonds.

Question

Quizplus · Accepted Answer

The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from hydrogen bonding. This is because the molecule has a polar covalent bond between the hydrogen and fluorine atoms, and the electronegativity difference between them causes a partial positive charge on the hydrogen and a partial negative charge on the fluorine. These partial charges allow for hydrogen bonding to occur, where the partially positive hydrogen on one molecule is attracted to the partially negative fluorine on another molecule. This results in a stronger intermolecular interaction compared to dipole-dipole or London dispersion forces, which also exist in HF molecules but are weaker. Ion-dipole interactions and ionic bonds are not relevant in this context, as HF molecules do not ionize in the gas or liquid state.

The Strongest Intermolecular Interactions Between Hydrogen Fluoride (HF) Molecules Arise