Final answer:
Acetone is a polar molecule with a large dipole moment and high boiling point. It can dissolve nonpolar substances like naphthalene due to weak forces of attraction.
Step-by-step explanation:
Acetone is a polar molecule due to the presence of a polar C=O double bond and nonpolar C-H bonds. It has a rather large dipole moment and a high boiling point. Despite being polar, acetone is able to dissolve nonpolar substances such as naphthalene because of the weak forces of attraction called London dispersion forces.