, shows a large dipole moment. Which of the following resonance structures can be used to adequately explain this observation? (i)  |
(ii)  |
(iii)  |
(iv)  |
A) (ii) only
B) (iii) and (iv)
C) (ii) and (iii)
D) (iv) only
Correct Answer: B
Solution :
Both aromatic rings is preferred.
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