Butanal (MW= 72) Has a Boiling Point of 76

question 34

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.

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