Hydrogen bonding is present in __________?
Correct answer: D. All of these
- A. Water
- B. Ethyl Alcohol
- C. Phenol
- D. All of these
Explanation
Water, ethyl alcohol, and phenol all contain an O-H bond, allowing hydrogen bonding between the partially positive hydrogen and a lone pair on oxygen. This intermolecular attraction accounts for their relatively high boiling points and affects their solubility. Students may choose water alone because it forms especially extensive hydrogen bonding, but the other two substances also hydrogen-bond.
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About Hydrogen Bonding
Hydrogen bonding is the strong attraction between hydrogen attached to nitrogen, oxygen or fluorine and an electronegative atom in the same or another molecule. It explains unusual boiling points, viscosity, surface tension, water's properties and the difference between intermolecular and intramolecular hydrogen bonding.
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