Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
Related questions
Question
4. Which molecule has the lowest pKa for the H proton at the very bottom (the H that's in the same spot for all the molecules)? Please explain your reasoning.

Transcribed Image Text:NH₂
(A)
H
0₂ N
H
(B)
H₂Co
(c)
H
H
(D)
OH
Expert Solution

Step 1: concept
Based on the stability of conjugate base of compound, acidity vary. With increasing the stability of conjugate base, acidity increases.
+R group increase the electron density on benzene ring that results decrease in acidity.
-R group decrease the electron density on benzene ring that results increase in acidity.
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