CH₂F₂ Has a Dipole Moment of 1

Multiple Choice

CH₂F₂ has a dipole moment of 1.93 D and a boiling point of 52C. CH₂Cl₂ has a dipole moment of 1.60 D and a boiling point of 40C. The boiling point of dichloromethane is higher than that of difluoromethane because of ________

A) dispersion forces.
B) dipole-dipole forces.
C) ion-ion forces.
D) ion-dipole forces.
E) hydrogen-bonding forces.