Chapter 17, Problem 17.61QP

Interpretation Introduction

Interpretation: The validation of the fact that the aqueous solutions of ${\text{Ti}}^{3+}$ ions are violet but the aqueous solutions of ${\text{Ti}}^{4+}$ ions are colourless is to be stated.

Concept introduction: The elements those contain partially filled $d$ orbital are called transition metals. The transition metals are also called $d-\text{block}$ elements. The $d-\text{block}$ of the periodic table includes the groups ranges from $3$ to $12$.

Titanium $\left(\text{Ti}\right)$ is a $d-\text{block}$ element with atomic number $22$.

To validate: The aqueous solutions of ${\text{Ti}}^{3+}$ ions are violet but the aqueous solutions of ${\text{Ti}}^{4+}$ ions are colourless.