Q. Which one of the following possess highest m.pt. ?
A) Chlorobenzene
B) o-dichlorobenzene
C) m- dichlorobenzene
D) p- dichlorobenzene
Explanation
(d)
$p$- dichlorobenzene molecule has symmetrical structure. It can fit well in its crystal lattice. The intermolecular forces of attraction are strong. Hence, it possesses highest melting point.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.