See image — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

**Bond Energy of C–C Single Bond:** A $C-C$ single bond involves the overlap of two $sp^3$ hybridized orbitals, creating a relatively strong $\sigma$ bond. **Typical value:** The $C-C$ single bond energy is approximately **83–85 $\kcal\,\text{mol}^{-1}$**, which rounds to **~100 $\kcal\,\text{mol}^{-1}$**. **Why option (C) is correct:** - $C-C$ bonds are strong but not extremely strong (single bonds, not double or triple) - 100 $\kcal\,\text{mol}^{-1}$ is the closest standard value - This matches experimental bond dissociation data **Why others are wrong:** - **(A) 1**: Far too small; would imply negligible bonding - **(B) 10**: Too weak; $C-C$ bonds are much stronger than this - **(D) 1000**: Too large; typical for breaking multiple bonds or entire molecules **Answer: (C) 100 $\kcal\,\text{mol}^{-1}$**