In which of the following is hydrogen bonding present?

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

State the factors affecting the strength of a hydrogen bond.

Which of the following compounds can form hydrogen bonds?

$HF$ has the highest boiling point among hydrogen halides because it has:

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: