Why Is Pyrrole Much Less Basic Than Pyridine

question 20

Multiple Choice

Why is pyrrole much less basic than pyridine?

• A)The lone pair of electrons in pyrrole is located on an sp² orbital.
• B)The lone pair of electrons in pyrrole is part of the aromatic p system.
• C)The lone pair of electrons in pyrrole is not part of the aromatic p system.
• D)The pK_a of the conjugate acid of pyrrole is much greater than the conjugate acid of pyridine.

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