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What is the dominant intermolecular force or bond that must be overcome in converting liquid CH3OH to a gas?

1. Dipole-dipole interaction
2. Covalent bonds
3. London dispersion force
4. Hydrogen bonding

Correct answer: Hydrogen bonding

Solution

Methanol (CH3OH) has an -OH group, which allows for hydrogen bonding. This is the strongest intermolecular force in methanol and must be overcome during vaporization.

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