Chapter 11.10B, Problem 11.24P

Interpretation Introduction

Interpretation: The mechanisms of the two preceding reactions are to be stated.

Concept introduction: The sulphuric acid catalyzed dehydration of alcohols yields different products at different temperatures. At $140°\text{C}$, the unimolecular dehydration of alcohol yields an alkene through ${\text{E}}_1$ mechanism. At $180°\text{C}$, the bimolecular dehydration of alcohol yields ether through ${\text{S}}_{\text{N}}\text{2}$ displacement reaction.

To determine: The mechanisms of the two preceding reactions.