Chapter 20, Problem 38A

(a)

Interpretation Introduction

Interpretation:

The family of organic compound is to be determined using functional group.

Concept introduction:

There are various functional groups in organic compounds.

Functional group	General formula
Halogen	$R-X$
Alcohol	$R-OH$
Carboxylic acid	$R-COOH$
Aldehydes	$R-CHO$
Ketones	$RCO{R}^{\text{'}}$
Esters	$RCOO{R}^{\text{'}}$
Amines	$R-N{H}_2$

Answer to Problem 38A

Alcohol

Explanation of Solution

The general formula of given compound is $R-OH$

It contains −OH functional group. So, the organic compound belongs to alcohol family.

(b)

Interpretation Introduction

Interpretation:

The family of organic compound is to be determined using functional group.

Concept introduction:

There are various functional groups in organic compounds.

Functional group	General formula
Halogen	$R-X$
Alcohol	$R-OH$
Carboxylic acid	$R-COOH$
Aldehydes	$R-CHO$
Ketones	$RCO{R}^{\text{'}}$
Esters	$RCOO{R}^{\text{'}}$
Amines	$R-N{H}_2$

Answer to Problem 38A

Ketone

Explanation of Solution

The general formula of given compound is $RCO{R}^{\text{'}}$

It contains −CO- functional group. So, the organic compound belongs to ketone family.

(c)

Interpretation Introduction

Interpretation:

The family of organic compound is to be determined using functional group.

Concept introduction:

There are various functional groups in organic compounds.

Functional group	General formula
Halogen	$R-X$
Alcohol	$R-OH$
Carboxylic acid	$R-COOH$
Aldehydes	$R-CHO$
Ketones	$RCO{R}^{\text{'}}$
Esters	$RCOO{R}^{\text{'}}$
Amines	$R-N{H}_2$

Answer to Problem 38A

Amine

Explanation of Solution

The general formula of given compound is $R-N{H}_2$

It contains $-N{H}_2$ functional group. So, the organic compound belongs to amine family.

(d)

Interpretation Introduction

Interpretation:

The family of organic compound is to be determined using functional group.

Concept introduction:

There are various functional groups in organic compounds.

Functional group	General formula
Halogen	$R-X$
Alcohol	$R-OH$
Carboxylic acid	$R-COOH$
Aldehydes	$R-CHO$
Ketones	$RCO{R}^{\text{'}}$
Esters	$RCOO{R}^{\text{'}}$
Amines	$R-N{H}_2$

Answer to Problem 38A

Aldehyde

Explanation of Solution

The general formula of given compound is $R-CHO$

It contains $-CHO$ functional group. So, the organic compound belongs to aldehyde family.