The correct order of catenation is

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(D) The order of catenation is based on the self-linking property through covalent bonding.For group $14$ elements,the bond energy decreases as the at

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$C > Si > Ge \approx Sn$

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(D) The order of catenation is based on the self-linking property through covalent bonding.For group $14$ elements,the bond energy decreases as the atomic size increases,which leads to a decrease in the strength of catenation.The correct order is $C > Si > Ge \approx Sn$.In $C$,there is strong $2p-2p$ overlapping,followed by $3p-3p$ in $Si$,and so on.The extent of overlapping decreases as: $2p-2p > 3p-3p > 4p-4p \approx 5p-5p$.

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