Question

Adding H^⊕ to a given anion may significantly change the bond length between existing atoms of the original anion due to change in their bond order. This is observed on addition of H^⊕ to how many of the following anions ? 

TeO₆^6- , IO₆^5-  , XeO^4-₆  , C₂^2- , N^-₃ , I^-₃

Answer 1

IO₆^5-, XeO₆^4- , N₃^-.

Comments

But how u got that answer plzz explain