The molecules in a sample of pure liquid dichloromethane, ${\mathrm{CH}}_2{\mathrm{Cl}}_2$, experience which of the following intermolecular forces? (P) Dispersion forces (Q) Dipole-dipole force R) Hydrogen bonding

Intermolecular forces are forces that exist between the molecules of a substance. The type of intermolecular forces that will exist between the molecules of a material depends on the nature of atom to atom bonding in that substance. All substances exhibit dispersion forces. In addition to dispersion forces, polar molecules like ${\mathrm{H}}_2{\mathrm{O}}_2$ and ${\mathrm{CH}}_2{\mathrm{Cl}}_2$.
Also, have a dipole-dipole interaction between their molecules. Hydrogen bonds, in addition to dispersion forces and dipole-dipole interaction, are present in compounds when hydrogen is linked to an atom of a strongly electronegative element, such as 1−butene−4−ol.

Hence, the correct option is c.