Question

Which of the following is least reactive to nitration?

• A. Benzene
• B. Nitrobenzene
• C. Chlorobenzene
• D. Aniline

Answer 1

Answer: (D)

Aniline

Answer 2

A Aniline directly does not show nitration because it oxidised by nitration (conc. $HNO _{3}$ ). So, to do the nitration it is necessary to protect amino group as