Question:
Which of the following statements are correct about CO32-?
(i) The hybridisation of the 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.
Solution:
Option (iii) and (iv) are the answers.
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