Why are hydrogen bonds considered a special class of dipole-dipole interactions?

Question

Why are hydrogen bonds considered a special class of dipole-dipole interactions? Choose one or more: A. They are observed with all molecules that contain only hydrogen and fluorine. B. They are observed with all molecules that contain hydrogen C. These interactions are between polar molecules but are weaker than normal dipole-dipole interactions D. These interactions are with polar molecules but are stronger than dipole-dipole interactions OE. These interactions only occur with organic molecules F. These interactions account for the higher melting and boiling points observed for certain molecules such as water.

Explanation / Answer

statements D and F are correct.

Explanation: Hydrogen bonding is observed in compounds having a free hydrogen attached to oxygen, fluorine, nitrogens. In statement A, it is saying hydrogen bonding is possible with molecules having only fluorine and hydrogen. so statement A is not correct.

Hydrogen bonding is a strong intermolecular forces of attraction than dipole-dipole interactions so statement C is not correct.

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