Chapter 23, Problem 42R

To determine

To write: Chemical formula of the given hydrocarbons and identify the isomers.

Explanation of Solution

Introduction:

Compounds that are composed of only hydrogen and carbon are termed as hydrocarbons.

Formula of the compounds are as follows:

1. 

Formula of this compound is: ${\text{C}}_5{\text{H}}_{12}$ .

2. 

Formula of this compound is: ${\text{C}}_5{\text{H}}_{12}$ .

3. 

Formula of this compound is: ${\text{C}}_3{\text{H}}_6$

4. 

Formula of this compound is: ${\text{C}}_4{\text{H}}_{10}$

Conclusion:

The first and the second compounds have the same formula, that is, ${\text{C}}_5{\text{H}}_{12}$ . Since, they have the same formula but different structures, they can be termed as isomers.