Chapter 6, Problem 6.19P

Interpretation Introduction

Interpretation:

The stronger acid between compound C and D is to be determined.

Concept introduction:

The relative acidity of molecules is based on the stability of the charged species. An increase in the effective electronegativity of an atom bearing a positive charge decreases the stability of the negatively charged species. A stronger acid has a higher stability of negatively charged species. The effective electronegativity of an atom increases in the order ${\text{sp}}^{\text{3}}{\text{< sp}}^{\text{2}}\text{< sp}$_. Delocalizing a charge via resonance lowers the concentration of the charge and increases the stability of the charged species.