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Introduction

Pyrroles are ...

Question

Pyrroles are five-membered nitrogen-containing heterocyclic compounds present in heme which is a constituent of hemoglobin. Draw all the significantly contributing resonance structures of pyrrole (K).

How many resonance structures can be found?

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Solution

Resonating structures of Pyrolle are shown above in the figure.
Hence, the no. of resonating structure of Pyrrole is 4.

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