Chapter 21, Problem 21.67QP

Interpretation Introduction

Interpretation:

The statements (a) an aqueous solution of ${\text{AlCl}}_{\text{3}}$ is acidic (b) ${\text{Al(OH)}}_{\text{3}}$ soluble in $\text{NaOH}$ solution but not in ${\text{NH}}_{\text{3}}$ solution has to be explained.

Concept introduction:

• Aluminum is denoted by the formula is $\text{Al}$
• The atomic number of aluminium is 13
• The color of aluminum is looks like silvery-white
• Aluminum can react with chlorine and water to produce ${\text{AlCl}}_{\text{3}}$ and ${\text{Al(OH)}}_{\text{3}}$ respectively.
• Aluminum has the most abundant is very high it has rank as third most abundant element.

Amphoterism: The term amphoterism says that the ability to act as an acid and as a base.