IUPAC name of Quinol is

Benzene-1,4-diol

The correct answer is option 4. Benzene-1,4-diol.

The correct IUPAC name of quinol is Benzene-1,4-diol.

Quinol is a common name for a compound with the chemical formula \(C_6H_4(OH)_2\). It consists of a benzene ring with two hydroxyl groups (-OH) attached to it. The hydroxyl groups are positioned on carbon atoms 1 and 4 of the benzene ring, making it a para-substituted compound. Thus, the correct IUPAC name for quinol is Benzene-1,4-diol.

The structure of quinol will be as follows: