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Q.
The molecular interactions responsible for hydrogen bonding in $ HF $
EAMCETEAMCET 2014
Solution:
Hydrogen bond is simply dipole-dipole attraction within oppositely partially charged ends. In $HF$ molecule, electronegativity difference is remarkable, due to which it behaves as a dipole. In the gaseous state several $HF$ molecules polymerises through $H$-bonding.