Organic Chemistry (8th Edition)

Published by Pearson
ISBN 10: 0321768418
ISBN 13: 978-0-32176-841-4

Chapter 1 - Introduction and Review - Study Problems - Page 39: 1-41 a

Answer

The second one is more stable.

Work Step by Step

The second one is more stable because it has two resonance forms, which gives it more stability.
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