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| List-$I$ (Bond) | List-$II$ (Bond enthalpy in $kJ \ mol^{-1}$) |
|---|---|
| $(A)$ $Si-Si$ | $(I)$ $240$ |
| $(B)$ $C-C$ | $(II)$ $297$ |
| $(C)$ $Sn-Sn$ | $(III)$ $348$ |
| $(D)$ $Ge-Ge$ | $(IV)$ $260$ |
| List-$I$ | List-$II$ |
| $(1)$ Kossel and Lewis | $(A)$ $VSEPR$ |
| $(2)$ Langmuir | $(B)$ Molecular Orbital Theory |
| $(3)$ Sidgwick and Powell | $(C)$ Covalent Bond |
| $(4)$ Heitler and London | $(D)$ Octet Rule |
| $(5)$ $F$. Hund and Mulliken | $(E)$ Valence Bond Theory |
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