Question

Whether $ClO_2^{-}$ ion is linear or not? Explain

Answer 1

${ClO}_2^{-}$ion has two bonding and two nonbonding electron pairs around chlorine, i.e., chlorine atom undergoes $s p^3$ hybridization.

Tetrahedral configuration comes into existence. Two positions are occupied by oxygen atoms and other two positions are occupied by two lone pairs of electrons.

Thus, the ion has ${V}$-shape i.e., it is non linear.