What is the IUPAC name of the given compound?

Question

Philoid · Accepted Answer

2 –hydroxy 1,4-dinirobenzene

Here we are numbering anticlock wise starting with the carbon having –NO₂ on right giving it 1, followed by carbon with –OH group which gets number 2 and the other carbon with –NO₂ gets the number 4. If we name in this order alone the lowest possible numbering is obtained. As there are two different substituents –NO₂ gets priority over –OH hence –OH named as hydroxy. Since there are 2 nitro groups we use a prefix di.