Chapter 13, Problem 24QP

(a)

Interpretation Introduction

Interpretation:

Whether ${\text{NH}}_4^{+}$ is amphoteric or not.

(b)

Interpretation Introduction

Interpretation:

Whether ${\text{HBO}}_3^{2-}$ is amphoteric or not.

(c)

Interpretation Introduction

Interpretation:

Whether ${\text{H}}_2{\text{PO}}_4^{-}$ is amphoteric or not.