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Which of the following species is least ...

Which of the following species is least stable ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
c
`=6 bar(e)s` in delocalisation
`implies `Aromatic
`b.` `implies 6 bar(e)s` in delocalisation
`implies` Aromatic
`c.` `implies 4 bar(e)s` in delocalisation
`implies `Anti `-` aromatic
`d.` `implies 10 bar(e)s` in delocalisation `implies` Aromatic
So the least stable is `(c)`.
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