Which class of organic compound is commonly used in perfumes?

• A. $\text{Amines}$
• B. $\text{Esters}$
• C. $\text{Carboxylic acids}$
• D. $\text{Alkanes}$

Answer: (B)

Verified step by step guidance

1. Understand the question: It asks which class of organic compounds is commonly used in perfumes. This involves recognizing the characteristic properties of each class listed.
2. Recall the properties of each class: Amines often have strong, sometimes unpleasant odors; Carboxylic acids tend to have sour or pungent smells; Alkanes are generally odorless or have very mild smells.
3. Focus on esters: Esters are known for their pleasant, often fruity and floral aromas, which makes them ideal for use in perfumes and fragrances.
4. Connect the chemical structure to scent: Esters have the general formula \(\mathrm{RCOOR'}\), where the combination of different alkyl groups (\(\mathrm{R}\) and \(\mathrm{R'}\)) leads to a variety of sweet-smelling compounds.
5. Conclude that esters are the class of organic compounds most commonly used in perfumes due to their characteristic pleasant and diverse aromas.