Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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