Hydrogen bonding is present in:

What is the reason for the exceptionally high boiling point of water?

Which of the following hydrogen bonds is likely to be the weakest?

Acetic acid exists as a dimer in benzene due to:

At room temperature $H_2O$ is a liquid while $H_2S$ is a gas. The reason is

The correct statement/s about Hydrogen bonding is/are:
$A$. Hydrogen bonding exists when $H$ is covalently bonded to a highly electronegative atom.
$B$. Intermolecular $H$ bonding is present in $o$-nitrophenol.
$C$. Intramolecular $H$ bonding is present in $HF$.
$D$. The magnitude of $H$ bonding depends on the physical state of the compound.
$E$. $H$-bonding has a powerful effect on the structure and properties of compounds.
Choose the correct answer from the options given below: