Which pair does not represent a pair of resonance structures?
A)I
B)II
C)III
D)IV
E)All of these choices represent pairs of resonance structures.

Name: Which pair does not represent a pair of resonance structures? A)I B)II C)III D)IV E)All of these choices represent pairs of resonance structures.
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Question

Which pair does not represent a pair of resonance structures? 
A)I 
B)II 
C)III 
D)IV 
E)All of these choices represent pairs of resonance structures.

Quizplus · Accepted Answer

Structure IV is not a resonance structure because the charges on the atoms are not in the same locations in both structures, indicating that electrons have not been delocalized between the two.

Which Pair Does Not Represent a Pair of Resonance Structures