Question

\(\text{o-Phenylenediamine}\) \(\xrightarrow{HNO_3} X\text{ Major Product X is}\): 

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

When performing reactions involving amines, the functional group often reacts with the reagent to form imines or other derivatives based on the substitution pattern of the aromatic ring.

Answer 1

The Correct Option is C

When o-phenylenediamine is treated with nitric acid, nitration occurs at the position ortho to the amino group. The nitro group (\(NO_2\)) replaces the hydrogen attached to the benzene ring, forming a nitrated product. In this case, the major product formed is an imine (\(C = N\)) structure, which is the result of the reaction between the amino group and the nitro group.
Thus, the correct product is a structure with a carbon-nitrogen double bond (C = N).