Chapter 18, Problem 107A

Interpretation Introduction

(a)

Interpretation:

The Lewis acid and base in the given reaction is to be identified.

Concept introduction:

According to Lewis concept,

Acid is a substance which is electron acceptor and base is a substance which is electron donor.

Answer to Problem 107A

Lewis acid - $H^{+}$

Lewis base - $O{H}^{-}$

Explanation of Solution

As $H^{+}$ is electron deficient species. So it accepts electrons from hydroxyl ion. Therefore, $H^{+}$ is Lewis acid and $O{H}^{-}$ is Lewis base.

Interpretation Introduction

(b)

Interpretation:

The Lewis acid and base in the given reaction is to be identified.

Concept introduction:

According to Lewis concept,

Acid is a substance which is electron acceptor and base is a substance which is electron donor.

Answer to Problem 107A

Lewis acid - $BC{l}_3$

Lewis base - $C{l}^{-}$

Explanation of Solution

As $BC{l}_3$ is electron deficient species. So it accepts electrons from $C{l}^{-}$. Therefore, $BC{l}_3$ is Lewis acid and $C{l}^{-}$ is Lewis base.

Interpretation Introduction

(c)

Interpretation:

The Lewis acid and base in the given reaction is to be identified.

Concept introduction:

According to Lewis concept,

Acid is a substance which is electron acceptor and base is a substance which is electron donor.

Answer to Problem 107A

Lewis acid - $SO$

Lewis base - $H_{2}O$

Explanation of Solution

As $SO$ contains multiple bond formed by atoms of different electro negativity. It is Lewis acid by extended definition of Lewis acid. It accepts electrons from oxygen of water. Therefore, $SO$ is Lewis acid and $H_{2}O$ is Lewis base.