Question

List the types of intermolecular forces that exist between molecules (or basic units) in each of the following species: (a) benzene (C6H6), (b) CH3Cl, (c) PF3, (d) NaCl, (e) CS2

Answer 1

Benzene (C6H6) = nonpolar molecules . Dispersion forces are present only.
Chloroform (CH3Cl)= polar molecules . Dispersion and dipole-dipole forces are
present.
Phosphorus trifluoride (PF3)
molecules are polar. Dispersion and dipole-dipole forces are
present.
Sodium chloride (NaCl) = ionic compound. Ion-ion and dispersion forces are present.
Carbon disulfide (CS2) = nonpolar molecules . Dispersion forces are present only.

Answer 2

one wrong answer:

Phosphorus triflouride (PF3) has polar bonds but it's symmetrical structure makes it's a nonpolar molecule. Other's are correct