What is the major product of the following reaction?

Question

Quizplus · Accepted Answer

The reaction shown in the image is an electrophilic aromatic substitution. It starts with nitration of benzene, where nitronium ion is the electrophile. In this case, the nitration is carried out in the presence of sulfuric and nitric acid to generate the nitronium ion. The nitronium ion then attacks the benzene ring to form the intermediate III. The first substitution leads to the formation of the nitrobenzene intermediate (II), but the reaction continues with a second substitution to finally form the major product, which is III, the dinitrobenzene. The other products (I, IV, and V) are minor products that may form under different reaction conditions, but they are not the major product in this specific case.

What Is the Major Product of the Following Reaction