The group of molecules having identical shape is :

Question

$\begin{array}{1 1}(1) SF_4 , XeF_4 , CCl_4 \\ (2) ClF_3 , XeOF_2 , XeF^+_3 \\ (3) BF_3 , PCl_3 , XeO_3 \\ (4) PCl_5 , IF_5 , XeO_2F_2 \end{array} $