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Grade 12th passOrganic Chemistry

What is order of aromaticity of pyrrole furan and thiophene? Explain with reason.

Profile image of Ankit Dash
7 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
7 Years ago
The main criteria of aromaticity is resonant or delocalization energy. It is difference between energy contained in bonds if they were localized like in Kekule's formula for benzene and actual energy. For benzene if is about 150 Kg/mol. The more this energy the more stable molecule is.
 
benzene > thiophene > pyrrole > furan.

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