Chapter 13, Problem 21Q

Interpretation Introduction

Interpretation: The condition that indicates a basic solution at $\text{25}°\text{C}$ is to be identified from the given conditions.

Concept introduction: The scale of acidity from $\text{0}$ to $\text{14}$ is known as $\text{pH}$ scale. The solution having $\text{pH}$ value less than seven is considered as acid whereas the solution having $\text{pH}$ value greater than seven is considered as base.

Similarly, the solution having $\text{pOH}$ value less than seven is considered as base whereas the solution having $\text{pOH}$ value greater than seven is considered as acid.