Chapter 4, Problem 11A

(a)

Interpretation Introduction

Interpretation:

The name of given binary compound IF₅ 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 11A

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. Prefix mono is not used for one element.

herefore, to name it, prefix penta- is used and it isnamed as Iodine pentafluorideto indicate five fluorine atoms.

(b)

Interpretation Introduction

Interpretation:

The name of given binary compound KrBr₂is 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 11A

Krypton dibromide

Explanation of Solution

The binary compound $KrB{r}_2$ 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 di- is used and it isnamed as Krypton dibromide to indicate two bromide atoms.

(c)

Interpretation Introduction

Interpretation:

The name of given binary compound SeO₂ 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 11A

Selenium dioxide.

Explanation of Solution

The binary compound $Se{O}_2$ 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 1element.

herefore, to name it, prefix di- is used and it is named as Selenium dioxide to indicate two oxygen atoms.

(d)

Interpretation Introduction

Interpretation:

The name of given binary compound P₂O₃is 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 11A

Diphosphorus trioxide

Explanation of Solution

The binary compound $P_2{O}_3$ 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 1element.

herefore, to name it, prefix di- and tri- are used to write the name and isnamed as Diphosphorus trioxide to indicate two phosphorus atoms and three oxygen atoms.

(e)

Interpretation Introduction

Interpretation:

The name of given binary compound I₂Cl₆ 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 11A

diiodine hexafluoride

Explanation of Solution

The binary compound $I_{2}C{l}_6$ 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, prefixes di- and hexa- are used to write the name and it isnamed as Diiodinehexachloride to indicate two iodine and six chlorine atoms.

(f)

Interpretation Introduction

Interpretation:

The name of given binary compound CO 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 11A

Carbon monoxide

Explanation of Solution

The binary compound $CO$ 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 isnamed as Carbon monoxide to indicate one oxygen atom.