Question

Among the following how many of the molecules are linear.

$\text{CO}_{2} , \text{NO}_{2}^{-} , \text{SO}_{2} , \text{N}_{3}^{-} , \text{C}_{2} \text{H}_{2} , \text{I}_{3}^{-} , \text{XeF}_{2} , \text{CS}_{2}$

Answer 1

$\text{CO}_{\text{2}} \text{,} \, \text{N}_{\text{3}}^{-} \text{,} \, \text{C}_{\text{2}} \text{H}_{\text{2}} \text{,} \, \text{I}_{\text{3}}^{-} \text{,} \, \text{XeF}_{\text{2}} \text{,} \, \text{CS}_{\text{2}}$
these are all linear in structure