Which one of the following pure substances will exhibit hydrogen bonding? A) CH₄ B) H₂C=CH₂ C) H₂O D) CHCl₃ E) CHF₃

Question

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Only the molecule with oxygen (choice C) has the ability to form hydrogen bonds. Hydrogen bonding occurs between a hydrogen atom bonded to a highly electronegative element (in this case, oxygen) and another highly electronegative element (again, in this case, oxygen). None of the other molecules have an oxygen atom, and therefore cannot exhibit hydrogen bonding.

Which One of the Following Pure Substances Will Exhibit Hydrogen