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Chemistry
Which of the following possesses highest melting point?
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Q. Which of the following possesses highest melting point?
JIPMER
JIPMER 2003
Hydrocarbons
A
p-dichlorobenzene
20%
B
m-dichlorobenzene
20%
C
o-dichlorobenzene
28%
D
chlorobenzene
32%
Solution:
$p$-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 among those given in the question.
