Question

Question: Order each of the following sets of compounds with respect to reactivity:

Short answer

Answer

Step-by-step solution

SN2 reaction

It is the substitution nucleophilic unimolecular reaction. It follows first-order kinetics that it is a two-step reaction in which a carbocation intermediate is formed.

The rate of the reaction depends only on the reacting species and is independent of the nucleophile.

Reactivity towards SN2 reaction

As the carbocation intermediate is formed in the reaction the reacting species which form the most stable carbocation is more reactive toward the nucleophile.

Stability of carbocation:

1. 3⁰> 2⁰> 1⁰
2. If carbocation showing resonance is more stable than non-resonance carbocation

So,

Reactivity order