Question

What is the predominant intermolecular force in the liquid state of each of these compounds: water (h2o), carbon tetrafluoride (cf4), and dichloromethane (ch2cl2)?

Answer 1

Water: hydrogen bonding
carbon tetrafluoride: dispersion or Van del Waals
dichloromethane: dipole-dipole

Answer 2

Answer: Water- hydrogen bonding

Carbon tetraflouride- dispersion forces

Dichloromethane- dispersion forces

Explanation:

Hydrogen bonding exists when hydrogen is bonded to an electronegative element. This results in a permanent dipole in the molecule. However, nonpolar molecules such as dichloromethane are held only by the weak dispersion forces.