Which of the following substances has the largest intermolecular forces of attraction?
Correct answer: A. H2O
- A. H2O
- B. H2S
- C. H2Se
- D. H2Te
Explanation
The strongest intermolecular force is hydrogen bonding, which is a particular subset of dipole-dipole interactions .It occurs when a hydrogen atom is in close proximity to a highly electronegative atom; namely oxygen, fluorine, nitrogen etc. Among the given option only option A has hydrogen bond hence it is the correct answer.
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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