Question

Name the following aromatic hydrocarbon according to IUPAC.

• A. 1,2-dimethylbenzene
• B. dimethylbenzene
• C. Benzene-1,2-dimethyl
• D. methyl toluene

Answer 1

The correct option is A 1,2-dimethylbenzene

If two or more identical substituents are present, numbers are separated by commas. Names of identical substituents are not repeated instead prefixes such as di(for 2), tri(for 3), tetra(for 4), penta(for 5), hexa(for 6) etc. are used.

So, the correct IUPAC name is 1,2-dimethylbenzene