Statement-I : Among $\text{BF}_4^-$, $\text{SiF}_4$, $\text{SF}_4$, and $\text{XeF}_4$, the bond lengths are not identical in two of these molecules. Statement-II : Among $\text{O}_2^+$, $\text{O}_2$, $\text{O}_2^{2-}$ and $\text{F}_2$ the highest bond order is found in $\text{O}_2^-$.
Show Hint
Check VSEPR geometries. Only structures with non-equivalent positions (like trigonal bipyramidal $sp^3d$ derived) have different bond lengths.