(I) |
(II) |
(III) |
A) \[I>II>III\]
B) \[III>II>I\]
C) \[II>I>III\]
D) \[II>III>I\]
Correct Answer: A
Solution :
[a](I) \[\Rightarrow \] Aromatic \[6\pi \bar{e}'s\] system in conjugation . |
(II) Non-aromatic, \[8\pi \bar{e}'s\] system but ring is not planar, so not anti-aromatic but non-aromatic. |
(III) \[\Rightarrow \] Anti-aromatic \[8\pi \bar{e}'s\] in conjugation . |
Stability order: Aromatic > Non-aromatic > Anti-aromatic. \[(I)>(II)>(III)\] |
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