Choose the incorrect relationship of bond energies :
Correct answer: C. C ≡ C > N ≡ N
- A. Br- Br > I - I
- B. CI - CI > F - F
- C. C ≡ C > N ≡ N
- D. All are correct
Explanation
The bond energy of Cl2 (diatomic chlorine molecule) is generally lower than that of F2 (diatomic fluorine molecule). This is because, as you move from left to right across a period in the periodic table, the atomic radius decreases, and the strength of covalent bonds in diatomic molecules tends to increase.As a result, the F2 bond is generally stronger and has a higher bond energy than the Cl2 bond. Breaking the F2 bond requires more energy than breaking the Cl2 bond.
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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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