a) Chlorobenzene, o-dichlorobenzene and benzene Interpretation: The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution. Concept introduction: Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene. To rank: The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Question

Rank the compounds in each of the following groups in order of their reactiv- ity to electrophilic substitution: (b) Phenol, benzene, chlorobenzene, benzoic acid (c) Benzene, bromobenzene, benzaldehyde, aniline

Answer 1

Question

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

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Rank the compounds in each of the following groups in order of their reactiv- ity to electrophilic substitution: (b) Phenol, benzene, chlorobenzene, benzoic acid (c) Benzene, bromobenzene, benzaldehyde, aniline

Rank the compounds in each of the following groups in order of their reactivity to electrophilic substitution: (a) Nitrobenzene, phenol, toluene, benzene (b) Phenol, benzene, chlorobenzene, benzoic acid (c) Benzene, bromobenzene, benzaldehyde, aniline

Rank the compounds in each group according to their reactivity toward electrophilic substitution: (a) Chlorobenzene, o-dichlorobenzene, benzene (b) p-Bromonitrobenzene, nitrobenzene, phenol (c) Fluorobenzene, benzaldehyde, o-dimethylbenzene

Answer 2

Question

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

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Answer 3

Question

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

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Answer 4

Question

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

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Answer 5

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

Answer 6

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Answer 7

Chapter 16.SE, Problem 48AP

Interpretation Introduction

a) Chlorobenzene, o-dichlorobenzene and benzene

Interpretation:

The compounds chlorobenzene, o-dichlorobenzene and benzene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds chlorobenzene, o-dichlorobenzene and benzene according to their reactivity towards electrophilic substitution.

Answer 8

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Answer 9

Interpretation Introduction

b) p-bromonitrobenzene, nitrobenzene, phenol

Interpretation:

The compounds p-bromonitrobenzene, nitrobenzene and phenol are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds p-bromonitrobenzene, nitrobenzene and phenol according to their reactivity towards electrophilic substitution.

Answer 10

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Answer 11

Interpretation Introduction

c) Fluorobenzene, benzaldehyde, o-xylene

Interpretation:

The compounds fluorobenzene, benzaldehyde and o-xylene are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds fluorobenzene, benzaldehyde and o-xylene according to their reactivity towards electrophilic substitution.

Answer 12

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

Answer 13

Interpretation Introduction

d) Benzonitrile, p-methylbenzonitrile, p-methoxybenzonitrile

Interpretation:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile are to be ranked according to their reactivity towards electrophilic substitution.

Concept introduction:

Aromatic compounds that contain an ortho and para directing substituent groups (except halogens) are more reactive than benzene and that contain meta directing substituent groups are less reactive than benzene. Halogens are ortho & para directing yet deactivating groups. Hence the halogen substituted benzenes are less reactive than benzene.

To rank:

The compounds benzonitrile, p-methylbenzonitrile and p-methoxybenzonitrile according to their reactivity towards electrophilic substitution.

Answer 14

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Answer 15

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Answer 25

Ch. 16.1 - Prob. 1P Ch. 16.2 - Propose a mechanism for the electrophilic...Ch. 16.2 - How many products might be formed on chlorination...Ch. 16.2 - When benzene is treated with D2SÅª4. deuterium...Ch. 16.3 - Prob. 5P Ch. 16.3 - What is the major monosubstitution product from...Ch. 16.3 - Identify the carboxylic acid chloride that might...Ch. 16.4 - Rank the compounds in each of the following groups...Ch. 16.4 - Predict the major products of the following...Ch. 16.4 - Prob. 10P

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Chapter 16 Solutions