Chapter 20, Problem 3Q

Interpretation Introduction

Interpretation: The change in the acidity of the aqueous solutions of the alkaline earth metal ions $\left({\text{M}}^{2+}\right)$ is to be predicted down the group.

Concept introduction: Alkaline earth metals are found in group $2\text{A}$ in the periodic table. These are highly reactive metals. The size of ions increases down the group.

To determine: The change in the acidity of the aqueous solutions of the alkaline earth metal ions $\left({\text{M}}^{2+}\right)$ down the group.