The hybridization of the central atom in $ICl^{+}_2$ is

What is the bond angle around an atom that undergoes $sp^2$ hybridization?

$sp^3$ hybridisation is found in

What type of hybridization is present in the $PCl_{5}$ molecule?

Which of the following pairs has the same bond angle?

Among the triatomic molecules/ions,$BeCl_2, N_3^{-}, N_2O, NO_2^{+}, O_3, SCl_2, ICl_2^{-}, I_3^{-}$ and $XeF_2$,the total number of linear molecule$(s)$/ion$(s)$ where the hybridization of the central atom does not have contribution from the $d$-orbital$(s)$ is
[Atomic number: $S=16, Cl=17, I=53$ and $Xe=54$ ]