Which of the following substances will have the strongest intermolecular forces? A) H₂S B) CO C) CH₃OH D) HBr E) Rn

Question

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CH₃OH (ethanol) will have the strongest intermolecular forces because it has both hydrogen bonding and dipole-dipole interactions. H₂S (hexane) and Rn (radon) are nonpolar, so they only have weak London dispersion forces. CO (carbon monoxide) has dipole-dipole interactions, but they are weaker than hydrogen bonding. HBr (hydrogen bromide) has dipole-dipole interactions and some hydrogen bonding, but ethanol has stronger hydrogen bonding.

Which of the Following Substances Will Have the Strongest Intermolecular