Question

When 1,2-dibromo-4-nitrobenzene is heated with NaOH in a nucleophilic aromatic substitution reaction, which of the following is an intermediate?

a) Hydroxylamine
b) Phenol
c) Aniline
d) Nitrobenzene

Answer 1

In a nucleophilic aromatic substitution reaction between 1,2-dibromo-4-nitrobenzene and NaOH, the intermediate formed is phenol.

Step-by-step explanation:

When 1,2-dibromo-4-nitrobenzene is heated with NaOH in a nucleophilic aromatic substitution reaction, the intermediate formed is phenol. Phenols are compounds in which an OH group is attached directly to an aromatic ring. They differ from alcohols in that they are slightly acidic in water and react with NaOH to form salts.