Comparing the three standard isomers of dichlorobenzene, which uniquely exhibits the absolute highes — Haloalkanes and Haloarenes Chemistry Question

💡 Solution & Explanation

The highly linear and structurally symmetrical *para*-isomer perfectly neatly heavily packs much more efficiently and closely into a solid crystal lattice than the unsymmetrical *ortho* and *meta* isomers, requiring vastly more thermal energy to melt.