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(D) The boiling points of noble gases increase from $He$ to $Xe$ due to the increase in the magnitude of van der Waals forces of attraction. As the at

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Increase in polarisability

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(D) The boiling points of noble gases increase from $He$ to $Xe$ due to the increase in the magnitude of van der Waals forces of attraction. As the atomic size increases down the group,the electron cloud becomes more diffuse and the polarisability of the atoms increases. Greater polarisability leads to stronger instantaneous dipole-induced dipole interactions,which results in higher boiling points.

Which factor is most responsible for the increase in boiling point of noble gases from $He$ to $Xe$ $:-$

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