Which one has the least bond angle:
Correct answer: B. H2O
- A. NH3
- B. H2O
- C. CH4
- D. BF3
Explanation
Water (H2O) has a bond angle of approximately 104.5 degrees. Like ammonia, water has two lone pairs of electrons on the oxygen atom, causing a distortion in the bond angles from the ideal tetrahedral angle.
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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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