Question: what is the difference between instantaneous and permanent dipoles?
Answer: Permanent Dipole- Permanent Dipole: Two or more permanent dipoles are attracted to each other, for example in HCl. ... Instantaneous Dipole Induced Dipole (Van der Waals forces / London forces / Dispersion): where an instantaneous dipole induces a dipole in another molecule, for example between Cl2 molecules.