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Shyam Dubey • 3.70K Points
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Q. What is the main type of intermolecular force responsible for the relatively high boiling point of water compared to H2S?

  • (A) London dispersion forces
  • (B) Dipole-dipole interactions
  • (C) Hydrogen bonding
  • (D) Ionic bonds
  • Correct Answer - Option(C)
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  • Filed under category Chemistry
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Explanation by: Shyam Dubey
Water exhibits strong hydrogen bonding (between H and highly electronegative O), which greatly raises its boiling point relative to H2S, which cannot hydrogen-bond effectively. London dispersion forces are present in all molecules but are not the dominant cause here. Dipole-dipole interactions are weaker than hydrogen bonds in this case. Ionic bonds are not relevant for neutral covalent molecules like water.

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