Question

The IUPAC name of the following compound is

• A. 1, 2-Dimethylphenol
• B. 3-Hydroxy-6-methyl xylene
• C. 3, 4-Dimethylphenol
• D. None of these

Answer 1

The correct option is C

3, 4-Dimethylphenol

Firstly

If different groups are attached to the benzene ring, then the following rules are kept in mind,

(a) The principal group is fixed as umber 1.

(b) The numbering of the chain is done in any direction (clockwise or anticlockwise) which gives lower number to the substituent.

(c) The substituents are written in alphabetical order.

Here principal group is alcohol. So the Carbon attached to the $-OH$ group gets numbered 1.

Therefore,