Chapter 20, Problem 20.60SP

Interpretation Introduction

Interpretation:

From the given set of compound the amphoteric compounds has to be identified.

Concept Introduction:

Lewis acid: The chemical species which accepts pair of electrons are termed as Lewis acid.

Lewis base: The chemical species which donates pair of electrons are termed as Lewis base.

Acid: The substances that donate ${\text{H}}^{\text{+}}$ are termed as acids.

Base: The substances that accept ${\text{H}}^{\text{+}}$ or donate ${\text{OH}}^{\text{-}}$ are termed as base.

Amphoteric: They are, compounds or ions that react with both acid and base. Example for amphoteric is ${\text{Al}}_{\text{2}}{\text{O}}_3$.