What compounds have dipole-dipole forces?
Dipole - dipole forces are intermolecular. Therefore attraction occurs between a partially positive region of a molecule and a partially negative region in an adjacent molecule.
Polarity originates from atoms having different electronegativity values e.g. HCl. Cl atom is far more electronegative than H [attracts the bonding pair of electrons towards itself] thus creating the polarity and hence the dipole - dipole attraction in liquid HCl.