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Identify the species which has resonance...

Identify the species which has resonance stabilization. Justify your answer.
(i) `CH_(3) - overset(..)underset(..)O-H`, (ii) `CH_(3)-NO_(2)`
(iii) buta-1,3-diene

Text Solution

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(i) The bond structure shows that there is no `pi` bond. Therefore no resonance and no resonance stabilization.
(ii)
N= O double bond is attached to ‘O’ which carries lone pair of electrons in a p orbital. Therefore resonance strucutres can be written and species is resonance stabilized.

the lewis structure shows two C=C double bonds alternating with a C-C single bond . therefore reasonance structures can be written as shown , and the species is reasonance stabilized .
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