Answer:
London dispersion forces and dipole-dipole interactions
Step-by-step explanation:
Intermolecular forces are the interactive forces that are present between the molecules. These intermolecular forces can be attractive or repulsive.
Hydrogen bromide is a diatomic covalent polar molecule, having chemical formula: HBr. Since, hydrogen bromide is a polar molecule, it has a permanent dipole.
Therefore, the intermolecular forces present between the hydrogen bromide molecules are dipole-dipole interactions and the london dispersion forces.