Final answer:
The aromatic compound with two ethyl groups attached to a benzene ring is named diethylbenzene, with additional descriptors (ortho, meta, para) used to indicate the positions of the substituents on the ring.
Step-by-step explanation:
The aromatic compound described by the student is named by identifying the substituents attached to the benzene ring and then adding the word 'benzene' to the end of the name of each substituent. In this compound, there are two ethyl groups (CH2CH3) attached to the benzene ring. Thus, the proper name for this aromatic compound is diethyl benzene. It's important to note, however, that if the ethyl groups are on adjacent carbons on the benzene ring, the compound is commonly referred to as o (ortho)-diethyl benzene; if they are one carbon apart, it is m (meta)-diethyl benzene; and if they are two carbons apart, it is p (para)-diethyl benzene. The position of the substituents (ortho, meta, para) should be determined based on the actual structure, which was not provided in the question.