Which of the following is not linear

Options

A. `CO_2`
B. `ClO_2`
C. `I_3^(-)`
D. None of these

Answer

B

Explanation

Hybridization in `ClO_2`:
No. of lone pair + No. of bond pair = 3
`sp^2` hybridization and Bent shape

Cl forms one double bond with an oxygen atom and a three electron bond with another oxygen atom.