Question : Which of the following intermolecular forces is also called a London force?

Option 1: Dispersion forces

Option 2: Dipole-induced dipole forces

Option 3: Dipole-dipole forces

Option 4: Hydrogen bond forces

Question : What kind of forces arise from transient dipoles in atoms that induce transient dipoles in nearby atoms, produce an attractive force and are significant only over short distances (~500 pm)?

Option 1: Dipole-dipole forces

Option 2: London dispersion forces

Option 3: Dipole-induced dipole forces

Option 4: Hydrogen bond