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(B) hydrogen bond is a special type of dipole-dipole attraction between a hydrogen atom covalently bonded to a highly electronegative atom and another

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dipole-dipole

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(B) hydrogen bond is a special type of dipole-dipole attraction between a hydrogen atom covalently bonded to a highly electronegative atom and another electronegative atom with a lone pair.In an $HF$ molecule,there is a significant electronegativity difference between $H$ and $F$,which creates a permanent dipole.Consequently,the interaction between $HF$ molecules is a form of dipole-dipole interaction.In the gaseous state,several $HF$ molecules polymerize through these $H$-bonding interactions.

The molecular interactions responsible for hydrogen bonding in $HF$ are:

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