Identify the correct answer:

1. BF3 has non-zero dipole moment.
2. Dipole moment of NF3 is greater than that of NH3.
3. Three canonical forms can be drawn for \(\text{CO}_3^{2-}\) ion.
4. Three resonance structures can be drawn for ozone.
Subtopic:  Polarity | Resonance & Nature of Compounds |
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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. It has three Sigma and three \(\pi\)-bonds.
4. All three C–O bonds are equal in length with a bond order in between 1 and 2.
Subtopic:  Resonance & Nature of Compounds |
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