In which of the following molecules would you expect the nitrogen-nitrogen bond to be the shortest?
Correct answer: C. N2
- A. N2H4
- B. NH3
- C. N2
- D. N2O
Explanation
The nitrogen-nitrogen (N-N) bond in N2 (nitrogen gas) would be the shortest among the given molecules. This is because N2 consists of two nitrogen atoms bonded together to form a diatomic molecule. The N-N bond length in N2 is shorter than in any other molecule that contains nitrogen because the two nitrogen atoms are directly bonded to each other, resulting in a strong and relatively short covalent bond between them.
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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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