Hydrogen bonding is formed in compounds containing hydrogen and

The electronegativity of oxygen is higher than that of sulfur. Yet,$H_2S$ is acidic while $H_2O$ is neutral. The reason for this is .........

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

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

Water $(H_2O)$ is a liquid while hydrogen sulphide $(H_2S)$ is a gas because

The strongest intermolecular hydrogen bond is present in which of the following pairs of molecules?