Butanal (MW= 72)has a Boiling Point of 76 °C While

Multiple Choice

Butanal (MW= 72) has a boiling point of 76 °C while butanol (MW= 74) has a boiling point of 118 °C.What accounts for this difference in boiling points?

A) Butanol is polar while butanal is not polar.
B) Butanol can exhibit dipole-dipole interactions while butanal cannot.
C) Butanol can hydrogen bond and butanal cannot hydrogen bond.
D) Butanal is less sterically hindered than butanol.