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 40: 1-47 d

Answer

Z is a stronger acid than Y because of the electronegativity of Oxygen and the resonance forms of Z anion.

Work Step by Step

Z is a stronger acid than Y because of two reasons: O is more electronegative than N and can support the negative charge of the anion better, and the anion of Z has two equivalent resonance forms which is particularly stable.
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