Chapter 15, Problem 15.109QE

(a)

Interpretation Introduction

Interpretation:

${\text{BCl}}_{\text{3}}$ has to be classified as a Lewis acid or a Lewis base.

Concept Introduction:

An acid serves to accept an electron-pair from another electron-rich species while a base donates electrons to another electron-deficient species in the reaction in accordance with Lewis's definition. For instance of Lewis acids that have electron-deficient central atom ${\text{BF}}_3$ and ${\text{SO}}_3$.

(b)

Interpretation Introduction

Interpretation:

${\text{HN}}_{\text{2}}{\text{NH}}_{\text{2}}$ has to be classified as a Lewis acid or a Lewis base.

Concept Introduction:

An acid serves to accept an electron-pair from another electron-rich species while a base donates electrons to another electron-deficient species in the reaction in accordance with Lewis's definition. For instance of Lewis acids that have electron-deficient central atom ${\text{BF}}_3$ and ${\text{SO}}_3$.

(c)

Interpretation Introduction

Interpretation:

Whether the reactants ${\text{Ag}}^{+}$ and ${\text{NH}}_3$ to form ${\left[\text{Ag}{\left({\text{NH}}_{\text{3}}\right)}_{\text{2}}\right]}^{+}$ should be classified as a Lewis acid or a Lewis base has to be decided.

Concept Introduction:

Refer to part (a).