Question

Among the triatomic molecules/ions, BeCl₂ , N\(^-_3\) , N₂O, NO\(^+_2\) , O₃ , SCl₂ , ICl\(^-_2\) ,I\(^-_3\) ,and XeF₂ , 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]

Answer 1

Correct answer is 4

So among the following only four (4) has linear shape and no d-orbital is involved in hybridization.