The strongest hydrogen bonding is present in: _____________?
Correct answer: B. Ice
- A. Ammonia gas
- B. Ice
- C. Ethanol
- D. Acetone and chloroform
Explanation
Ice has an extensive, three-dimensional hydrogen-bonded network, with each water molecule strongly interacting with neighbouring molecules. Ammonia and ethanol also form hydrogen bonds, but their networks are generally less extensive, while acetone cannot donate a hydrogen bond and chloroform forms much weaker interactions. The likely mistake is choosing ethanol because its O-H bond is visibly present, while overlooking the large network formed throughout ice.
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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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