In how many of the following all bond lengths are not equal?
${\text{CO}}_3^{-2},{\mathrm{O}}_3,{\mathrm{BF}}_3,{\mathrm{P}}_4\left(\mathrm{white}\right),{\mathrm{PCl}}_5,{\mathrm{SF}}_4,{\mathrm{CIF}}_3,{\mathrm{XeF}}_2,{\mathrm{XeF}}_4,{\left[{\mathrm{ClF}}_4\right]}^{+}$

Consider the following statement and arrange in the order of true / false.

${\mathrm{S}}_1$: In ${\mathrm{SnCl}}_2$, the bonding takes place in the ground state and the bond angle $\mathrm{Cl}-\mathrm{Sn}-\mathrm{Cl}$ is slightly less than $120°$.

${\mathrm{S}}_2$: The molecular geometry of ${\mathrm{XeF}}_7^{+}$ is pentagonal bipyramidal having two different $\mathrm{Xe}-\mathrm{F}$ bond lengths.

${\mathrm{S}}_3$: In ${\mathrm{SF}}_4$, the bond angles, instead of being $90°$ and $180°$, are $89°$ and $177°$ respectively due to the presence of a lone pair.