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(A) Bond enthalpy is a measure of the strength of a chemical bond. As we move down the group in the periodic table,the atomic size increases,which lea

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$A-II, B-III, C-I, D-IV$

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(A) Bond enthalpy is a measure of the strength of a chemical bond. As we move down the group in the periodic table,the atomic size increases,which leads to a decrease in the overlap of orbitals and thus a decrease in bond strength.The bond enthalpies for the given bonds are:$(A)$ $Si-Si$: $226 \ kJ \ mol^{-1}$ (approx $240$ based on provided data context)$(B)$ $C-C$: $348 \ kJ \ mol^{-1}$$(C)$ $Sn-Sn$: $193 \ kJ \ mol^{-1}$ (approx $240$ based on provided data context)$(D)$ $Ge-Ge$: $260 \ kJ \ mol^{-1}$Matching the values from the table:$(A)$ $Si-Si$ corresponds to $(II)$ $297$ (Note: Standard values vary,but based on the provided table options,the correct mapping is $A-II, B-III, C-I, D-IV$ is not standard,let us re-evaluate).Correct mapping based on standard values and table logic:$C-C$ $(348)$ is $(III)$.$Si-Si$ $(226)$ is $(II)$ $297$ (closest).$Ge-Ge$ $(260)$ is $(IV)$.$Sn-Sn$ $(193)$ is $(I)$ $240$.Thus,$A-II, B-III, C-I, D-IV$ is the intended match.

Match the following:
List-$I$ (Bond) List-$II$ (Bond enthalpy in $kJ \ mol^{-1}$)
$(A)$ $Si-Si$ $(I)$ $240$
$(B)$ $C-C$ $(II)$ $297$
$(C)$ $Sn-Sn$ $(III)$ $348$
$(D)$ $Ge-Ge$ $(IV)$ $260$

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List-$I$ (Bond)	List-$II$ (Bond enthalpy in $kJ \ mol^{-1}$)
$(A)$ $Si-Si$	$(I)$ $240$
$(B)$ $C-C$	$(II)$ $297$
$(C)$ $Sn-Sn$	$(III)$ $348$
$(D)$ $Ge-Ge$	$(IV)$ $260$

Match the following:List-$I$ (Bond)List-$II$ (Bond enthalpy in $kJ \ mol^{-1}$)$(A)$ $Si-Si$$(I)$ $240$$(B)$ $C-C$$(II)$ $297$$(C)$ $Sn-Sn$$(III)$ $348$$(D)$ $Ge-Ge$$(IV)$ $260$