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Question

The catenation tendency of C,Si and Ge is in the order Ge<Si<C. The bond energies (in kJ mol1) of CC,SiSi and GeGe bonds, respectively are:

A
348,167,180
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B
348,180,167
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C
167,180,348
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D
180,167,348
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Solution

The correct option is B 348,180,167
The catenation tendency of C,Si and Ge is in the order Ge<Si<C. The bond energies (in kJ mol−1) of CC,SiSi and GeGe bonds are 348,180,167 respectively.
Ge has lowest bond energy, hence lowest catenation tendency.
C has highest bond energy, hence highest catenation tendency.

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