Explain the important aspects of resonance with reference to the …

Question

Explain the important aspects of resonance with reference to the $\text{CO}^{2-}_3$− ion.

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Answer

Resonance in $\text{CO}_3^{2-}$, I, II and III represent the three canonical forms.

In these structures, the position of nuclei is same.
All the three forms have almost equal energy.
Same number of paired and impaired electrons, they differ only in their position.

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