Question

Which compound(s) exhibit only London dispersion intermolecular forces? 

(Select all that apply.) 

• NH₂OH 

• SO₂ 

• CH₄ 

• SF₄ 

• PF₅ 

• NH₃ 

Answer 1

London dispersion forces are present only in the Non-polar organic molecules. Now, among the provided molecules, all are organic, so we have to find the non-polar one(s) which will only have the dispersion forces.

- Polar

- Polar, angular molecule, so the Dipole moment is present.

- Non-Polar, only London-dispersion forces exist

- Polar molecule, Dipole moment = +ve.

- Non-polar, only London-dispersion forces exist

- Polar molecule.

Hence, and will have only London-dispersion forces as they are non-polar, organic molecules.