JEE Main 2016 Chemistry question

Which intermolecular force is most responsible in allowing xenon gas to liquefy?

(1)London forcesCorrect
(2)Ion-dipole
(3)Ionic
(4)Dipole-dipole

Answer: (1)

Solution

Xenon is a monatomic noble gas: its atoms are electrically neutral, carry no charge, and being spherical have no permanent dipole moment. That rules out ionic, ion-dipole and dipole-dipole interactions, options (2), (3) and (4). What remains are **London dispersion forces**, which arise from

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Question ID VK-115529