Question

Question: Classify the conversion of A to B as a substitution, elimination, or addition. B can be converted to the female sex hormone estrone in two steps.

Short answer

Answer

The conversion of A to B can be classified as an addition reaction.

Step-by-step solution

Step-by-Step SolutionStep 1: Substitution reactions

The chemical reactions that involve the replacement of an atom or group by another are referred to as substitution reactions.

Addition and elimination reactions

The reactions that involve the addition of atoms or groups to one another are termed addition reactions and the ones that involve the loss of atoms or molecules from a compound are termed elimination reactions.

Identifying the type of reaction

The conversion of A to B involves the addition of chlorine (Cl) and hydroxyl (OH) groups to the pi bond present in the five-membered ring.

Since the reaction involves the addition of two groups it can be classified as an addition reaction.

Reaction representing the addition of atoms to the pi bond