Which one of the following statements is true about the structure of \(\mathrm{CO^{2-}_3}\) ion?
1. | It can be explained by considering sp3 hybridization. |
2. | Out of the three C–O bonds, two are longer and one is shorter. |
3. | \(\pi\)-bonds. | It has three Sigma and three
4. | All three C–O bonds are equal in length with a bond order in between 1 and 2. |