The correct order of $\angle \mathrm{OClO}$ bond angles in ${{\mathrm{CIO}}^{-}}_2$, ${\mathrm{CIO}}_2$and ${{\mathrm{CIO}}_2}^{+}$ is :

In the following species, the rising bond angles should be in the proper order:

${\mathrm{ClO}}_2^{-}<{\mathrm{ClO}}_2<{\mathrm{ClO}}_2^{+}$
This is because two lone pairs of electrons in ${{\mathrm{ClO}}_2}^{-}$ oppose one another, causing two oxygen atoms to move in closer together and reduce the bond angle. Due to the fact that chlorine has fewer electrons than oxygen, the bond angle in ${{\mathrm{ClO}}_2}^{-}$ is less than 118°.