MCQ
Which one of the following possess highest m.pt.
  • A
    Chlorobenzene
  • B
    $o-$ dichlorobenzene
  • C
    $m-$ dichlorobenzene
  • $p-$ dichlorobenzene

Answer

Correct option: D.
$p-$ dichlorobenzene
d
(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.

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