Which of the following statements are correct about `CO_(3)^(2-)`?

Options

A. The hybridisation of central atom is `sp^(3).`
B. Its rresonance structure has one C-O single bond and two C=O double bonds.
C. The average formal charge on each oxygen atom is 0.67 units.
D. All C-O bond lengths are equal.

Answer

C, D

Explanation

Both these statements are correct.