Chapter 12.22, Problem 31P

Interpretation Introduction

Interpretation:

The ${\text{ pK}}_{\text{a}}$

of the conjugate acid of pyrrole is to be estimated. Whether the conjugate acid of pyridine and conjugate acid of pyrrole, strong or weak is to be determined.

Concept introduction:

According to Brønsted theory, the stronger the base, weaker is its conjugate acid and vice versa.

Stronger the acid, lower the ${\text{ pK}}_{\text{a}}$

value.