ICl has a higher boiling point than Br sub 2 What is the best explanation for this?

ICl contains two different atoms, so its bond is polar and the molecule has a permanent dipole. This allows ICl molecules to attract through dipole-dipole interactions, in addition to dispersion forces. Br₂ is nonpolar, so it does not have dipole-dipole attractions; the best explanation is that ICl experiences dipole-dipole interactions.

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