Acetaldehyde is polar and benzene is non-polar. But benzene boils at higher temperature. Why?

Acetaldehyde is polar and benzene is non-polar. But benzene boils at h

1.	Acetaldehyde is polar and benzene is non-polar. But benzene boils at higher temperature. Why?
Answer» Solution :Acetaldehyde is polar and has dipole-dipole ATTRACTIONS between its molecules. However, benzene molecules has dispersion of PI electron cloud. HENCE molecules of benzene are more associated. Because of the dispersed picloud, BENZEE is less volatile and has higher BOILING point compared to acetaldehyde