Bond dissociation energy of $\mathrm{CH_4}$ is $360\,\mathrm{kJ\,mol^{-1}}$ and $\mathrm{C_2H_6}$ is $620\,\mathrm{kJ\,mol^{-1}}$. Then bond dissociation energy of C-C bond is
- A$170\,\mathrm{kJ\,mol^{-1}}$
- B$50\,\mathrm{kJ\,mol^{-1}}$
- C$80\,\mathrm{kJ\,mol^{-1}}$
- D$220\,\mathrm{kJ\,mol^{-1}}$
✓ Correct answer: C
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