Chapter 9, Problem 9.18P

Interpretation Introduction

Interpretation:

The carbon atom in the given molecule that would undergo the nucleophilic substitution most readily is to be determined.

Concept introduction:

The leaving group needs to be bonded to an $s{p}^3$ hybridized carbon atom as $s{p}^2$ and $sp$ hybridized carbons form stronger $\text{σ}$ bonds than $s{p}^3$ hybridized carbons, thereby making it more difficult for the leaving group to leave.