Intermolecular forces acting among the molecules are

attractive in nature

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repulsive in nature

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both (a) and (b)

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none of these

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Solution

The correct option is C both (a) and (b)
Intermolecular forces act between molecules of a substance and arises due to the charge distribution inside a molecule. The molecules exists in a polarized state ( due to distortion of the electron cloud by adjacent molecule).

Hence attractive forces operate between the oppositely charged poles and repulsive forces operate between similarly charged poles.
$∴$ Intermolecular forces includes attractive forces as well as repulsive forces between the molecules.

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