Chapter 6.11B, Problem 6.18P

Interpretation Introduction

Interpretation: The decreasing order of the given compounds based on their reactivity toward the ${\text{S}}_{\text{N}}2$ reaction is to be predicted.

Concept introduction: The replacement or substitution of one functional group with another different functional group in any chemical reaction is termed as substitution reaction.

The nucleophilic reaction contains a substrate as well as a nucleophile as the reactants which mean a bimolecular nucleophilic reaction is termed as ${\text{S}}_{\text{N}}\text{2}$ reaction. It includes the bond-making and bond-breaking steps. This is a one-step reaction in which both nucleophile and substrate participate in the rate determining step.

To determine: The decreasing order of the given compounds based on their reactivity toward the ${\text{S}}_{\text{N}}2$ reaction.