Clove contains eugenol, which is the main active compound responsible for its characteristic aroma and medicinal properties. Eugenol is an essential oil found in clove and other plants such as cinnamon.
- Carveol: Incorrect! Carveol is found in caraway seeds, not in cloves.
- Indole: Incorrect! Indole is a compound found in various plants, but it is not found in cloves.
- Clovonol: Incorrect! Clovonol is not a compound found in cloves.
- Eugenol: Correct! Eugenol is the compound that gives clove its distinct flavor and is used for its medicinal and aromatic properties.
Thus, the correct answer is (4) Eugenol.