Q. What is the main type of intermolecular force responsible for the relatively high boiling point of water compared to H2S?
✅ Correct Answer: (C)
Hydrogen bonding
Explanation: 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.
Explanation by: Sikhar Chaudhary
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.