Which of the following species has a linear shape ?

Options

A. `NO_2^(+)`
B. `O_3`
C. `NO_2^(-)`
D. `SO_2`

Answer

C

Explanation

`SN` of `N` in `NO_2^(+)` is `2+0=0` (linear), `SN` of `O` in `O_3` is `2+1=3` (bent), `SN` of `N` in `NO_2^(-)` is `2+1=3` (bent), and `SN` of `S` in `SO_2` is `2+1=3` (bent).