Chapter 10.8, Problem 20P

Interpretation Introduction

Interpretation:

The order of compounds from most reactive to least reactive in an E2 reaction has to be listed.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via E1 (the reaction depends only on the substrate involved in the reaction) or E2 (the reaction depends on both of the substituents in the reaction) mechanism.

Elimination reaction of an alkyl halide results in the formation of an alkene.

Down the group, atom size decreases which in turn reduces the tendency of atom for donating electrons and hence basicity decreases making them a better leaving group.