Chapter 19, Problem 44E

Interpretation Introduction

(a)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of compound ${\text{CH}}_{\text{3}}-\text{OH}$ is alcohol.

Explanation of Solution

The given organic compound is ${\text{CH}}_{\text{3}}-\text{OH}$.

Alcohol is the class of organic compounds in which an alkyl group is attached to hydroxyl group. The general formula of alcohols is $\text{R}-\text{OH}$.

Therefore, the class of compound ${\text{CH}}_{\text{3}}-\text{OH}$ is alcohol.

Conclusion

The class of given has been rightfully identified.

Interpretation Introduction

(b)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of compound ${\text{CH}}_3-{\text{CH}}_2-\text{O}-{\text{CH}}_2-{\text{CH}}_3$ is ether.

Explanation of Solution

The given organic compound is ${\text{CH}}_3-{\text{CH}}_2-\text{O}-{\text{CH}}_2-{\text{CH}}_3$.

Ether is the derivatives of alcohol. The general formula of alcohols is shown below.

$\text{R}-\text{O}-\text{H}$

When the hydrogen of the alcohol is replaced by another alkyl group ether is formed. The general formula of ether is shown below.

$\text{R}-\text{O}-\text{R}$

Therefore, the class of compound ${\text{CH}}_3-{\text{CH}}_2-\text{O}-{\text{CH}}_2-{\text{CH}}_3$ is ether.

Conclusion

The class of given compound has been rightfully identified.

Interpretation Introduction

(c)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of the given compound is amide.

Explanation of Solution

The structure of the given compounds is shown below.

Figure 1

Amides are the derivatives of carboxylic acid. The general structure of carboxylic acid is shown below.

Figure 2

When the hydroxyl group of carboxylic acid is replaced by amine group, then amide is formed.

Therefore, the class of the given compound is amide.

Conclusion

The class of given has been rightfully identified.

Interpretation Introduction

(d)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of the given compound is ketone.

Explanation of Solution

The structure of the given organic compound is shown below.

Figure 3

The carbonyl compounds are the compounds that contains $\text{>C=O}$ group. A ketone is formed when the carbonyl group is atttached to two alkyl groups. The carbonyl group of the given compound attached to one methyl group and a ethyl group.

Therefore, the class of the given compound is ketone.

Conclusion

The class of given has been rightfully identified.

Interpretation Introduction

(e)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of the given compound is ester.

Explanation of Solution

The structure of the given compounds is shown below.

Figure 4

Esters are the derivatives of carboxylic acid. The general structure of carboxylic acid is shown below.

Figure 2

When the hydrogen of the hydroxyl group of carboxylic acid is replaced by an alkyl or aryl group, then ester is formed.

Therefore, the class of the given compound is ester.

Conclusion

The class of given has been rightfully identified.

Interpretation Introduction

(f)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of given compound is phenol.

Explanation of Solution

The structure of the given organic compound is shown below.

Figure 5

When an aromatic ring is attached to the hydroxyl group, then this type of compounds is known as phenol. The hydroxyl group of the given compound is attached to an aromatic ring.

Therefore, the class of given compound is phenol.

Conclusion

The class of given has been rightfully identified.

Interpretation Introduction

(g)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of the given compound is organic halide.

Explanation of Solution

The structure of the given organic compound is shown below.

Figure 6

Halogen is the elements that belong to the seventeenth group of the periodic table. When a halogen is combined to a hydrocarbon, then organic halides are formed. Chlorine is halogen.

Therefore, the class of the given compound is organic halide.

Conclusion

The class of given has been rightfully identified.

Interpretation Introduction

(h)

Interpretation:

The class of given compound is to be identified.

Concept introduction:

The functional groups are atoms or the group of atoms that acts as substituents in the molecules and are responsible for their characteristic reactions. The functional group containing oxygen atoms are alcohol group, carboxylic acid group, aldehyde group, ketone group, phenols, ethers, and their derivatives.

Answer to Problem 44E

The class of the given compound is alcohol.

Explanation of Solution

The structure of the given compounds is shown below.

Figure 7

Alcohol is the class of organic compounds in which an alkyl group is attached to hydroxyl group. The general formula of alcohols is $\text{R}-\text{OH}$.

Therefore, the class of the given compound is alcohol.

Conclusion

The class of given has been rightfully identified.