Which of the following statements are correct about CO3^2– ?
(i) The hybridisation of central atom is sp3.
(ii) Its resonance structure has one C–O single bond and two C=O double bonds.
(iii) The average formal charge on each oxygen atom is 0.67 units.
(iv) All C–O bond lengths are equal.
NCERT Class XI
Chemistry - Exemplar Problems
Chapter 4. Chemical bonding and molecular structure