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Question:

In Pyrrole the electron density is maximum on: 2 and 4

2 and 5

3 and 4

2 and 4

2 and 3

Solution:

In pyrrole, the electron density is maximum on 2nd and 5th carbon. We can observe this from its resonance structure that 3rd and 5th structure are stable resonating structure.Hence, option B is correct.