The Total solution for NCERT class 6-12
p-Dichlorobenzenehas higher m.p. and lower solubility than those of o– and
m-isomers.Discuss.
p-Dichlorobenzeneis more symmetrical than o-and m-isomers. For thisreason, it fits more closely than o-and m-isomers inthe crystal lattice. Therefore, more energy is required to break the crystallattice of p-dichlorobenzene. As a result, p-dichlorobenzenehas a higher melting point and lower solubility than o-and m-isomers.