The chemical species having smallest bond angle:
Correct answer: A. NH3
- A. NH3
- B. NCI3
- C. NF3
- D. NBr3
Explanation
NH3 has a bond angle of approximately 107 degrees. The central nitrogen (N) atom is bonded to three hydrogen (H) atoms, and the lone pair of electrons on nitrogen contributes to a slight compression of the bond angles from the ideal tetrahedral angle of 109.5 degrees.
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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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