Which of the following compounds will have the maximum hydrogen bonding?

Explain why $HCl$ is a gas and $HF$ is a liquid?

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

What is the maximum number of hydrogen bonds in which a single water molecule can participate?

What is the maximum number of hydrogen bonds in which a water molecule can participate?

The hydrides of the first elements in groups $15-17$, namely $NH_3$, $H_2O$ and $HF$ respectively show abnormally high values for melting and boiling points. This is due to