Chapter 4, Problem 10A

(a)

Interpretation Introduction

Interpretation:

The name of given binary compound ${\text{IF}}_{\text{5}}$ 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 10A

Iodine pentafluoride

Explanation of Solution

The binary compound $I{F}_5$ is composed of non-metals. So, it comes under type-III category.

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. For example, prefix mono is not used for 1 element.

herefore, to name the prefix penta- is used for 5 F atoms and it is named as Iodine pentafluoride.

(b)

Interpretation Introduction

Interpretation:

The name of given binary compound AsCl₃ 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 10A

Arsenic trichloride

Explanation of Solution

The binary compound $AsC{l}_3$ is composed of non-metals. So, it comes under type-III category.

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, prefix tri- is used to write the name and it is named as Arsenic trichloride to indicate three chlorine atoms.

(c)

Interpretation Introduction

Interpretation:

The name of given binary compound SeOis 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 10A

Selenium monoxide.

Explanation of Solution

The binary compound $SeO$ is composed of non-metals. So, it comes under type-III category.

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, to name it, prefix mono-is used and it is named as Selenium monoxide to indicate one oxygen atom.

(d)

Interpretation Introduction

Interpretation:

The name of given binary compound XeF₄ 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 10A

Xenon tetrafluoride

Explanation of Solution

The binary compound $Xe{F}_4$ iscomposed of non-metals. So, it comes under type-III category.

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, to name it, prefix tetra- is used and it is named as Xenon tetrafluoride to indicate four fluorine atoms.

(e)

Interpretation Introduction

Interpretation:

The name of given binary compound NI₃is 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 10A

Nitrogen triodide.

Explanation of Solution

The binary compound $N{I}_3$ iscomposed of non-metals. So, it comes under type-III category.

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, prefix tri- is used to write the name and it is named as Nitrogen triodide to indicate three iodine atoms.

(f)

Interpretation Introduction

Interpretation:

The name of given binary compound B₂O₃is 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 10A

Diboron trioxide

Explanation of Solution

The binary compound $B_2{O}_3$ iscomposed of non-metals. So, it comes under type-III category.

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, to name it prefix di and tri- are used and it is named as Diboron trioxide to indicate two boron and three oxygen atoms.