Chapter 12, Problem 37A

(a)

Interpretation Introduction

Interpretation:

The Lewis structure and resonating structures (if possible) of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 37A

  

Resonating structures:

  

Explanation of Solution

Sulphur has six valence electrons. One electron is shared by each oxide ion and two electrons are shared by oxygen atom and no electron pairs are left unshared.

Its resonating structure is also possible as follows:

  

(b)

Interpretation Introduction

Interpretation:

The Lewis structure and resonating structures (if possible) of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 37A

  

Resonating structures:

  

Explanation of Solution

Phosphorus has five valence electrons. One electron is shared by each oxide ion and two electrons are shared by oxygen atom and no electron pairs are left unshared.

Its resonating structure is also possible.

(c)

Interpretation Introduction

Interpretation:

The Lewis structure and resonating structures (if possible) of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 37A

  

Resonating structures of $S{O}_3{}^{-}$are:

  

Explanation of Solution

Sulphur has six valence electrons. One electron is shared by each oxide ion and two electrons are shared by oxygen atom and one electron pair is left unshared.

Three resonating structures are possible for $S{O}_3{}^{-}$ .