Question

Which of the following is the most reactive towards ring nitration?

• A. o-xylene
• B. Toluene
• C. p-xylene
• D. m-xylene

Answer 1

Answer: (D)

In $m$-xylene the electron donating effect of two $C{H}_3$ groups reinforce each other and hence $m$-xylene is the most reactive towards ring nitration.