All the $$C—O$$ bonds in carbonate ion $$(CO_{3}^{2-})$$ are equal in length. Explain.
In $$CO_{3}^{2-}$$ ion, carbon is bonded to three oxygen atoms. It is bonded to two oxygen atoms by double bonds and one with single bond.$$\text{ Bonds are not fixed and show resonance}$$ therefore, all $$C-O$$ bonds are equal in length.