Q. In which of the following molecules, atoms are coplanar?
A) [image:2016_Q77_opt_a.png]
B) [image:2016_Q77_opt_b.png]
C) [image:2016_Q77_opt_c.png]
D) [image:2016_Q77_opt_d.png]
Explanation
[Solution] Per the official key, biphenyl (structure 1), in which both $sp^2$ rings are drawn coplanar. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.