AIIMS 2019 Chemistry Aromatic Compounds MCQ Question

In the reaction between phenol and aniline in the presence of diazonium salt (C₆H₅N₂⁺Cl⁻) and a base (KOH), p-hydroxyazobenzene is formed through an electrophilic aromatic substitution mechanism, where the diazonium ion acts as an electrophile that couples with the nucleophilic aniline. This results in the formation of a stable azo compound, specifically at the para position relative to the hydroxyl group of phenol, which is favored due to sterics and electronic effects. Other options are not applicable as they do not provide relevant information or alternative products formed in this specific reaction context.