Which One of the Following Structures Represents a Different Compound

question 34

Multiple Choice

Which one of the following structures represents a different compound from the other three?

• A) 1
• B) 2
• C) 3
• D) 4

---

Definitions:

α-Halogenation

A chemical process where a hydrogen atom in an organic molecule is replaced by a halogen atom through substitution.

Acid

An acid is a substance that can donate a hydrogen ion (H+) to another substance and is typically characterized by a sour taste and the ability to turn blue litmus red.

Acid-Catalyzed

A type of chemical reaction that is sped up in the presence of an acid, which acts as a catalyst.

α-Bromination

The addition of a bromine atom to the alpha position of a carbonyl compound in organic chemistry, often used in synthesis reactions.