A-Level CAIE Chemistry AS 3.6.3—Van der Waals’ forces as the intermolecular Question Bank

• Those due to bond formation, and use the term van der Waals’ forces as a generic term to describe all intermolecular forces

- (a) describe van der Waals’ forces as the intermolecular forces between molecular entities other than

- (b) describe the types of van der Waals’ forces:

- instantaneous dipole–induced dipole (id-id) forces, also called London dispersion forces

- permanent dipole–permanent dipole (pd-pd) forces, including hydrogen bonding

- (c) describe hydrogen bonding and understand that hydrogen bonding is a special case of permanent dipole–permanent dipole forces between molecules where hydrogen is bonded to a highly electronegative atom