Hydrogen Fluoride and Water

[jackson6612]

It is said that Hydrogen bonding effects are especially pronounced in water because water has two hydrogen atoms and two unshared elctron
pairs ,giving each molecule the oppertunity to participate in four
hydrogen bonds.Sir,HF also has oppertunity to participate in four hydrogen bonds but even then it has much lower boiling point than water. HF also has lower melting point than water. Can you explain why? I'm first year college student. Thank you

Sincerely,
Vijay