Arrange the following in order of increasing boiling point.
CH₃CH₂OH CH₃CH₂CH₃ H₃C-O-CH₃ CH₃CH₂NH₂
I II III IV

Question

Arrange the following in order of increasing boiling point. CH₃CH₂OH CH₃CH₂CH₃ H₃C-O-CH₃ CH₃CH₂NH₂ I II III IV A)IV < III < II < I B)II < III < IV < I C)I < IV < III < II D)II < III < I < IV

Quizplus · Accepted Answer

The order of increasing boiling points is based on the strength of intermolecular forces. Ethanol (I) has hydrogen bonding, giving it the highest boiling point. Ethylamine (IV) also has hydrogen bonding but is weaker than ethanol. Dimethyl ether (III) has dipole-dipole interactions, and propane (II) has only van der Waals forces, giving it the lowest boiling point.

Arrange the Following in Order of Increasing Boiling Point