Carbonate Ion Bond Order and Resonance
The concept of resonance is used to explain the bonding in the carbonate ion, . Which of the following best supports the conclusion that the average C-O bond order in this ion is approximately 1.33?
A
The resonance structures indicate that only the structure with a single bond is valid, leading to an incorrect average bond order.
B
The resonance forms, when averaged, yield a bond order of , which is consistent with experimental observations of bond lengths and strengths in the carbonate ion.
C
The presence of multiple resonance forms implies that the bond order fluctuates between 1 and 2 rather than averaging to a fixed value.
D
One resonance form shows a double bond exclusively, suggesting a bond order of 2 without any averaging over multiple forms.
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