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# The catenation tendency

Question:

The catenation tendency of $\mathrm{C}, \mathrm{Si}$ and $\mathrm{Ge}$ is in the order $\mathrm{Ge}<\mathrm{Si}<\mathrm{C}$. The bond energies (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) of $\mathrm{C}-\mathrm{C}, \mathrm{Si}-\mathrm{Si}$ and $\mathrm{Ge}-\mathrm{Ge}$ bonds are respectively :

1. $348,260,297$

2. $348,297,260$

3. $297,348,260$

4. $260,297,348$

Correct Option: , 2

Solution: