COMEDK · Chemistry · 29. Amines
Identify the final product formed when benzenamine reacts with the given reagents in the sequential order as:
i. (CH\(_3$$-\)CO )\(_2\)O / Pyridine.
ii. Conc. HNO\(_3\) + H\(_2\)SO\(_4\) & then reacted with H\(_3\)O\(^+\)
iii. NaNO\(_2\) HCl (273K) & then reacted with H\(_3\)PO\(_2\)(aq).
- A 2- Chloro- 4-Nitrophenol
- B 4 – Chloro– 2 – Nitroaniline
- C 4–Nitrophenol
- D Nitrobenzene
Answer & Solution
Correct Answer
(D) Nitrobenzene
Step-by-step Solution
Detailed explanation
Benzenamine (aniline) reacts with acetic anhydride in the presence of pyridine to form acetanilide. This step protects the amino group and prevents polysubstitution and oxidation. Acetanilide undergoes nitration with a mixture of concentrated \(\text{HNO}_3\) and concentrated…
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