Q. An aromatic compound $‘X’$ with molecular formula $C_{8}H_{10}$ produces on nitration one mononitro derivative and three dinitro derivatives. Compound ‘$X$’ would be
A) Ethyl benzene
B) $m$-xylene
C) $o$-xylene
D) $p$-xylene
Explanation
(d)
In $p$-xylene, the four nuclear H-atoms are equivalent and hence, only one on e mononitro derivative is formed. But it gives three dinitro derivatives (2,3;2,6 and 2,5) as shown below
[image:13_image255.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.