Question

Out of o- and p-dibromobenzene which one has higher melting

point and why?​

Answer 1

Answer:

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Explanation:

p-dibromobenzene has higher melting point than its o-isomer due to symmetry. Due to symmetry, p- isomer fits in the crystal lattice better than the o-isomer. Hence, p-dibromobenzene has higher melting point.

Answer 2

Answer:

Explanation:

In p-dibromobenzene, thereis perfect symmetry which can fit into crystal lattices very well.

In p-dibromobenzene, there is less symmetry.