Amongst aldehydes and ketones , ketones have higher boiling point ....this is due to the presence of two electron donating alkyl groups around the C=O group which makes them more polar
for ex- boiling point of CH3-CHO = 322 K and dipole moment is 2.52 D
boiling point of CH3-CO-CH3 = 329 K and dipole moment is 2.88D
dipole moment of CH3-CO-CH3 is more than CH3-CHO ...this because there are two electron donating CH3 groups around C=O bond where as there is only 1 CH3 group around C=O in CH3CHO
as dipole moment is more so more polar and hence higher boiling point