Dipole forces exists in all molecules but not in metals. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles(Chem Purdue). So in order to dissolve CsI in HF mainly all types of interactions are involved.ĭ) Since, potassium is a metal so on melting any metal, the forces that are involved are metallic forces or bonding.Ī) dispersion forces, dipole-dipole forces, hydrogen bondsĬ) ion-ion interparticle forces, hydrogen bonds, dipole-dipole forces To dissolve CsI in HF, some of the hydrogen bonds, dipole-dipole and dispersion forces between HF molecules must also be overcome. So, on boiling liquid ammonia the weak intermolecular forces breaks down but it cannot break the strong covalent bond that is present between nitrogen and hydrogen atoms.ī) In molecule, the forces that are present are dispersion forces since the molecule is non planar and it has weak intermolecular interactions.Ĭ) CsI has ionic interactions due to presence of cesium ion and iodide ion while HF molecule has strong hydrogen bonding.

C) Dipole-dipole forces, ion-ion interparticle forces, hydrogen bondsĪ) Ammonia molecule has weak intermolecular forces between the molecule which is known as dipole-dipole interactions or forces and strong covalent forces between its atoms.

Metallic bonds and dispersio force