Chapter 4, Problem 12A

(a)

Interpretation Introduction

Interpretation:

The name of given binary compound is to be written.

Concept introduction:

To name a compound, certain rules are followed. The given compounds are binary compounds.

Binary compounds are of three types:

• Type-I: Compound in which a metal forms ionic bond with a non-metal and the metal can form only one type of ions.
• Type-II: Compound in which a metal forms ionic bond with a non-metal and the metal can form more than one type of ions.
• Type-III: Compound in which a non-metal forms bond with a non-metal.

Answer to Problem 12A

Dinitrogentetraoxide

Explanation of Solution

The structure shows that formula is $N_2{O}_4$ . It is type-III compound.

Rules for naming Type-III compounds:

1. It is name by writing the name of first element as same as element.
2. Second element in anionic form and prefixes are used to denote the number of atoms. Prefix mono is not used for 1 element.

The binary compound $N_2{O}_4$ is named as Dinitrogentetraoxide to indicate two nitrogen and four oxygen atoms.

(b)

Interpretation Introduction

Interpretation:

The name of given binary compound is to be written.

Concept introduction:

To name a compound, certain rules are followed. The given compounds are binary compounds.

Binary compounds are of three types:

• Type-I: Compound in which a metal forms ionic bond with a non-metal and the metal can form only one type of ions.
• Type-II: Compound in which a metal forms ionic bond with a non-metal and the metal can form more than one type of ions.
• Type-III: Compound in which a non-metal forms bond with a non-metal.

Answer to Problem 12A

Iodine trichloride

Explanation of Solution

The structure shows that formula is $IC{l}_3$ . It is a Type-III compound.

Rules for naming Type-III compounds:

1. It is name by writing the name of first element as same as element.
2. Second element in anionic form and prefixes are used to denote the number of atoms. Prefix mono is not used for 1element.

The binary compound $IC{l}_3$ is named as Iodine trichloride to indicate three chlorine atoms.

(c)

Interpretation Introduction

Interpretation:

The name of given binary compound SO₂is to be written.

Concept introduction:

To name a compound, certain rules are followed. The given compounds are binary compounds.

Binary compounds are of three types:

• Type-I: Compound in which a metal forms ionic bond with a non-metal and the metal can form only one type of ions.
• Type-II: Compound in which a metal forms ionic bond with a non-metal and the metal can form more than one type of ions.
• Type-III: Compound in which a non-metal forms bond with a non-metal.

Answer to Problem 12A

Sulphur dioxide

Explanation of Solution

The binary compound $S{O}_2$ is a Type-III compound.

Rules for naming Type-III compounds:

1. It is name by writing the name of first element as same as element.
2. Second element in anionic form and prefixes are used to denote the number of atoms. Prefix mono is not used for 1 element.

herefore, it is named as Sulphur dioxide to indicate two oxygen atoms.

(d)

Interpretation Introduction

Interpretation:

The name of given binary compound P₂S₃ is to be written.

Concept introduction:

To name a compound, certain rules are followed. The given compounds are binary compounds.

Binary compounds are of three types:

• Type-I: Compound in which a metal forms ionic bond with a non-metal and the metal can form only one type of ions.
• Type-II: Compound in which a metal forms ionic bond with a non-metal and the metal can form more than one type of ions.
• Type-III: Compound in which a non-metal forms bond with a non-metal.

Answer to Problem 12A

Diphosphoruspentasulphide

Explanation of Solution

The binary compound $P_2{S}_5$ is a Type-III compound.

Rules for naming Type-III compounds:

1. It is name by writing the name of first element as same as element.
2. Second element in anionic form and prefixes are used to denote the number of atoms. Prefix mono is not used for first element.

herefore, it is named as Diphosphoruspentasulphide to indicate two phosphorus atoms and five sulphur atoms.