| Column-$I$ | Column-$II$ |
|---|---|
| $A$. Boron in $[B(OH)_4]^-$ | $1$. $sp^2$ |
| $B$. Aluminum in $[Al(H_2O)_6]^{3+}$ | $2$. $sp^3$ |
| $C$. Boron in $B_2H_6$ | $3$. $sp^3d^2$ |
| $D$. Carbon in Buckminsterfullerene | |
| $E$. $Si$ in $SiO_4^{4-}$ | |
| $F$. $Ge$ in $[GeCl_6]^{2-}$ |
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