a) p -Nitroaniline, p -aminobenzaldehyde, p -bromoaniline Interpretation: The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity. Concept introduction: Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Question

Dtermine the weakest base (a) o-Aminoacetophenone (c) m-Aminoacetophenone (b) p-Aminoacetophenone (d) Acetanilide

Answer 1

Question

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

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Dtermine the weakest base (a) o-Aminoacetophenone (c) m-Aminoacetophenone (b) p-Aminoacetophenone (d) Acetanilide

The –NHCOR group of an amide is an activating group, but it is not as strongly activating as NH2. (a) Explain why it is an activating group. (b) Explain why it is less activating than NH2.

i) What property of amines is responsible for their being basic ii) Arrange the following compounds in order of increasing basic strength putting the least basic first. NH3 CH,CONH; O NH2 CH,CH;NH; D C. c) What general name is given to the reaction between phenylamine and nitrous acid at 5°C ii) Write the equation for the reaction in c(i). + Ajouter une légende.. > Statut (Personnalisé)

Answer 2

Question

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

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Answer 3

Question

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

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Answer 4

Question

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

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Answer 5

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 6

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 7

Chapter 24.4, Problem 6P

Interpretation Introduction

a) p-Nitroaniline, p-aminobenzaldehyde, p-bromoaniline

Interpretation:

The compounds p-nitroaniline, p-aminobenzaldehyde and p-bromoaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 8

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 9

Interpretation Introduction

b) p-Chloroaniline, p-aminoacetophenone, p-methylaniline

Interpretation:

The compounds p-chloroaniline, p-aminoacetophenone and p-methylaniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 10

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 11

Interpretation Introduction

c) p-(trifluoromethyl)aniline, p-methylaniline, p-(fluoromethyl)aniline

Interpretation:

The compounds p-(trifluoromethyl)aniline, p-methylaniline and p-(fluoromethyl) aniline are to be arranged in the increasing order of their basicity.

Concept introduction:

Amines are basic as they can donate the lone pair if electrons on the N atom. Generally aryl amines are less basic than alkyl amines. An electron withdrawing substituent present on the aromatic ring reduces the base strength while an electron releasing substituent present on the aromatic ring enhances the base strength.

Answer 12

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Ch. 24.1 - Name the following compounds:Ch. 24.1 - Prob. 2P Ch. 24.1 - Prob. 3P Ch. 24.3 - Prob. 4P Ch. 24.3 - The benzylammonium ion (C6H5CH2NH3+) has pKa =...Ch. 24.4 - Prob. 6P Ch. 24.5 - Prob. 7P Ch. 24.6 - Prob. 8P Ch. 24.6 - Prob. 9P Ch. 24.6 - Show two methods for the synthesis of dopamine, a...

Chapter 24 Solutions