The catenation tendency of C, Si and Ge is in the order `Ge lt Si lt C`. The bond energies (in kJ `mol^(-1)`) of C-C, Si-Si and Ge-Ge bonds, respectively, are

Options

A. 167180348
B. 180167348
C. 348167180
D. 348180167

Answer

D

Explanation

Bond energy is directly related to catenation tendency. Since the catenation tendency is of order `Ge lt Si lt C` the bond enrgies are as follows `C-C=348,Si-Si=180`
and Ge-Ge=167.