The catenation tendency of C, Si and Ge is in | vedclass

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(A) The ability of atoms of the same element to link together to form long chains or rings is known as catenation.This property is primarily dependent

Vedclass · Accepted Answer

$348, 297, 260$

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(A) The ability of atoms of the same element to link together to form long chains or rings is known as catenation.This property is primarily dependent on the bond dissociation energy of the $M-M$ bond.As we move down the group from $C$ to $Ge$,the atomic size increases,which leads to a decrease in the strength of the $M-M$ bond.The bond dissociation energies for $C-C$,$Si-Si$,and $Ge-Ge$ are approximately $348 \ kJ \ mol^{-1}$,$297 \ kJ \ mol^{-1}$,and $260 \ kJ \ mol^{-1}$ respectively.Therefore,the order of catenation tendency follows the order of bond energies: $C > Si > Ge$.

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

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