Question

Which has the greater delocalization energy?

Short answer

Greater delocalization energy:

Delocalization of energy: -It is the extra stabilization energy which comes from the electrons that are spread over the molecule.

Second species ˃ First species

Step-by-step solution

Resonating structures             

Final answer

Second species has greatest delocalization energy it has two resonating structures and none of them has separated charges and oxygen get negative charge.

After that first species has three resonating structures and two of them has separated charges.