Chemistry - CHEMICAL BONDING Question with Solution | TestHub

$\text{Bond}\text{strength}\propto \text{Bond}\text{order}$

Bond order is determined through resonating structure. Among the given species, the bond dissociation energy of$\mathrm{C}-\mathrm{O}$bond is minimum in case of$\mathrm{C}{\mathrm{O}}_3^{2-}$by which$\mathrm{C}-\mathrm{O}$bond become more weaker in$\mathrm{C}{\mathrm{O}}_3^{2-}$or the bond order of$\mathrm{C}{\mathrm{O}}_3^{2-}$(1.33) is minimum so the bond become weaker.