Which of the following is an organic compound with the formula CH₃OC₆H₅ used as a perfume, fragrance and solvent?

Anisole

The correct answer is option 1. Anisole.

Anisole is an organic compound with the chemical formula \(CH_3OC_6H_5\). Let's break down the components of this formula:

1. \(CH_3\):  This represents a methyl group, which consists of one carbon atom and three hydrogen atoms.

2. \(OC_6H_5\):  This represents a phenyl group, which is a six-carbon ring with alternating single and double bonds, commonly represented as \(C_6H_5\).

Combining these components, you get \(CH_3OC_6H_5\), which is anisole. Anisole is a colorless liquid with a pleasant, sweet smell, and it is often used as a perfume, fragrance, and solvent in various industries. The compound is derived from phenol by replacing one of the hydrogen atoms on the phenyl ring with a methoxy \((-OCH_3)\) group.

In summary, anisole is an organic compound that serves as a useful ingredient in the production of perfumes and fragrances, and it also acts as a solvent in different applications.