Which of the following exhibits the weakest intermolecular forces

NH₃

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HCl

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H₂O

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Solution

The correct option is C He
$N H_{3}$ and $H_{2} O$ have hydrogen bonding so intermolecular forces are quite high in these molecules compared to other two. Size of HCl molecule is larger than that of He molecules; hence it has comparatively higher Vanderwall’s force of attraction.

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Which of the following exhibits the weakest intermolecular forces

Which of the following exhibit the weakest intermolecular forces?

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