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Correct order of resonance energy of fol...

Correct order of resonance energy of following compounds :

A

`IIgtIgtIVgtIII`

B

`IIgtIVgtIgtIII`

C

`IgtIIgtIIIgtIV`

D

`IIgtIgtIIIgtIV`

Text Solution

Verified by Experts

The correct Answer is:
D

I,II,III are aromatic due to delocalisation so more resonance energy than IV.
Due to delocalisation- `I^(st)` get positive character on nitrogen
`II^(nd)` get positive character on sulfur.
`III^(rd)` get positive character on oxygen.
E.N: Oxygen gt Nitrogen gt Sulphur
So resonance energy IIgtIgtIIIgtIV.
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