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Question

In pyrrole

the electron density is maximum on


A

2 and 3

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B

3 and 4

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C

2 and 4

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D

2 and 5

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Solution

The correct option is D

2 and 5


The conjugation (delocalisation) of electrons in pyrrole can be visualised as

As resonating structures III and IV are more stable than II and V. Thus, maximum electron density will be found on carbon 2 and 5.


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