Q. Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be
A) [image:13_image162.emf]
B) [image:13_image163.emf]
C) [image:13_image164.emf]
D) [image:13_image165.emf]
Explanation
(c)
Aniline on diazotization in cold (at 0${^\circ}\ to\ 5℃$) gives benzene diazonium chloride.
[image:13_image232.emf]
This benzene diazonium chloride on coupling reaction with dimethyl aniline gives a coloured product i.e. ,p(N, N dimethyl)amino azobenzene (azodye)
[image:13_image233.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.