Remember the intermolecular forces between HCl molecules. Why does the force between H2O molecules is stronger than HCl molecules?
You have to think the electronegativity of O and Cl. The electronegativity of oxygen atom is greater than chlorine atom, so that H2O molecules are more polar than HCl molecules.
How about fluor and nitrogen atoms? Electronegativity of Fluor atom is greater than oxygen atom and oxygen atom is greater than nitrogen atom. EN F> O > N. Are these elements have a hydrogen bonding in their compounds with hydrogen atoms? Certainly yes, they are. Because all these elements have the greatest electronegativity. Please think about HF and NH3, and alcohol molecules.
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