Question

Highest magnitude of hydrogen bonding in h2o or hf?

Answer 1

The extent of hydrogen bonding depends upon electronegativity and the number of hydrogen atoms available for bonding. Among nitrogen, fluorine, and oxygen, the increasing order of their electronegativities are N H2O > NH3.But, the actual order is H2O > HF > NH3.Although fluorine is more electronegative than oxygen, the extent of hydrogen bonding is higher in water. There is a shortage of hydrogens in HF (The NH3 example is only for understanding.!)