Chapter 22, Problem 32A

a.

Interpretation Introduction

Interpretation:

The structure of chlorobenzene needs to be drawn.

Concept introduction:

The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix, functional group should be identified. In the last step, side groups are identified and named. Prefix is used to give number of side groups and substituent’s present on the main carbon chain.

Explanation of Solution

The given compound is chlorobenzene.

As per the name, there is a benzene ring with chlorine group attached to it.

The structure will be:

b.

Interpretation Introduction

Interpretation:

The structure of 1-bromo-4-chlorohexane needs to be drawn.

Concept introduction:

The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix, functional group should be identified. In the last step, side groups are identified and named. Prefix is used to give number of side groups and substituent’s present on the main carbon chain.

Explanation of Solution

The given compound is 1-bromo-4-chlorohexane.

From the name, there are 6 carbon atoms in the chain. Also, there is 1 bromo group at 1^st position and 1 chloro group at 4^th position.

Thus, the structure of compound will be:

c.

Interpretation Introduction

Interpretation:

The structure of 1, 2-difluoro-3-iodocyclohexane needs to be drawn.

Concept introduction:

The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix, functional group should be identified. In the last step, side groups are identified and named. Prefix is used to give number of side groups and substituent’s present on the main carbon chain.

Explanation of Solution

The given compound is 1, 2-difluoro-3-iodocyclohexane.

From the name it can be seen that there are 6 carbon atoms in the ring. Also, there is 1 I at 3^rd position and 2 F groups at 1 and 2 positions.

The structure of the compound will be:

d.

Interpretation Introduction

Interpretation:

The structure of 1, 3-dibromobenzene needs to be drawn.

Concept introduction:

The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix, functional group should be identified. In the last step, side groups are identified and named. Prefix is used to give number of side groups and substituent’s present on the main carbon chain.

Explanation of Solution

The name of the compound is 1, 3-dibromobenzene.

From the name, there is a benzene ring with 2 bromine groups at 1^st and 3^rd positions.

The structure will be:

e.

Interpretation Introduction

Interpretation:

The structure of 1, 1, 2, 2-tetrafluoroethane needs to be drawn.

Concept introduction:

The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix, functional group should be identified. In the last step, side groups are identified and named. Prefix is used to give number of side groups and substituent’s present on the main carbon chain.

Explanation of Solution

The name of the compound is 1, 1, 2, 2-tetrafluoroethane.

From the name it can be seen that there are 4 fluorine atoms; 2 each at position 1 and 2.

Also, there are 2 carbon atoms in the chain. The structure will be as follows: