Chapter 9, Problem 28P

(a)

Interpretation Introduction

Interpretation:

The alcohol in the given pair that undergoes an elimination reaction more rapidly when heated with ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$ has to be indicated.

Concept introduction:

Dehydration reaction:

Removal of water molecule from the alcohol in the presence of strong acid like sulfuric acid is known as dehydration reaction.

  

Carbocation: It is carbon ion that bears a positive charge on it.

The increasing stability order of carbocation is as follows,

Primary carbocation < secondary carbocation < tertiary carbocation

(b)

Interpretation Introduction

Interpretation:

The alcohol in the given pair that undergoes an elimination reaction more rapidly when heated with ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$ has to be indicated.

Concept introduction:

Dehydration reaction:

Removal of water molecule from the alcohol in the presence of strong acid like sulfuric acid is known as dehydration reaction.

  

Carbocation: It is carbon ion that bears a positive charge on it.

The increasing stability order of carbocation is as follows,

Primary carbocation < secondary carbocation < tertiary carbocation

(c)

Interpretation Introduction

Interpretation:

The alcohol in the given pair that undergoes an elimination reaction more rapidly when heated with ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$ has to be indicated.

Concept introduction:

Dehydration reaction:

Removal of water molecule from the alcohol in the presence of strong acid like sulfuric acid is known as dehydration reaction.

  

Carbocation: It is carbon ion that bears a positive charge on it.

The increasing stability order of carbocation is as follows,

Primary carbocation < secondary carbocation < tertiary carbocation

(d)

Interpretation Introduction

Interpretation:

The alcohol in the given pair that undergoes an elimination reaction more rapidly when heated with ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$ has to be indicated.

Concept introduction:

Dehydration reaction:

Removal of water molecule from the alcohol in the presence of strong acid like sulfuric acid is known as dehydration reaction.

  

Carbocation: It is carbon ion that bears a positive charge on it.

The increasing stability order of carbocation is as follows,

Primary carbocation < secondary carbocation < tertiary carbocation