Question

Identify \(o\)-ethyl anisole.

• A. FigA
• B. FigB
• C. FigC
• D. FigD

Hint:

Anisole means methoxybenzene. The prefix \(o\)- indicates adjacent substituent positions on the benzene ring.

Answer 1

The Correct Option is A

Concept: The name of an aromatic compound provides information about both the parent compound and the position of substituents.

Step 1: Understanding anisole. Anisole is methoxybenzene. Its structure is: \[ C_6H_5OCH_3 \] Thus, the benzene ring contains the methoxy group: \[ -OCH_3 \]

Step 2: Understanding the term “o-ethyl”. The prefix “ortho” or “o” means that the substituent is attached adjacent to the main substituent. Therefore, the ethyl group: \[ -C_2H_5 \] must be present at the adjacent carbon atom relative to the methoxy group.

Step 3: Conclusion. Hence, \(o\)-ethyl anisole contains: \[ -OCH_3 \text{ and } -C_2H_5 \] at ortho positions. Therefore, option (1) is correct.