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Q. Arrange the following compounds in order of increasing dipole moment
I) m-dichlorobenzene
II) o-dichlorobenzene
III) p-dichlorobenzene

NTA AbhyasNTA Abhyas 2022

Solution:

$\text{o} - \text{dichlorobenzene} > \text{m} - \text{dichlorobenzene>p} - \text{dichlorobenzene}$
Solution
Para dechlorobenzene $\mu =0$
$\mu =\sqrt{\mu _{1} + \mu _{2} + 2 \mu _{1} \mu _{2} cos\theta }$
as $\theta \uparrow\mu \downarrow$