NEET 2009 Chemistry question

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

(1)Dipole-dipole interaction
(2)Covalent bonds
(3)London dispersion force
(4)Hydrogen bondingCorrect

Answer: (4)

Solution

Methanol contains an O-H bond, so its molecules are associated through hydrogen bonds, which are the strongest intermolecular forces present. When the liquid is converted to a gas, these hydrogen bonds (the

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Question ID VK-090299