NEETChemistryChemical Bonding and Molecular Structure
Which of the following statements is correct about ( CO ₃²⁻ ) ? A. The hybridisation of central atom is (s p^3 ). B. Its resonance structure has one ( C - O ) single bond and two ( C = O ) double bonds. C. The average formal charge on each carbon atom is 0.67 units. D. All ( C - O ) bond lengths are equal.
Options
- AA
- BA and C
- CB and D
- DC and D
Correct answer
D. C and D
Step-by-step solution
The hybridisation of central atom is (s p^2 ). Since a net charge of -2 is shared over 3 oxygen atoms, hence formal charge (=0.67 ) units. In resonating structures bonds are not fixed and therefore, all bond lengths are equal. Hence, options (c) and (d) are correct.