Arrange the following compounds in order of increasing dipole moment .
Toluene (I) m-dichlorobenzene (II)
o-dichlorobenzene (III) . P-dichlorobenzene (IV) .

Class 12 Chemistry in Class 12 3 years ago

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`IltIVltIIltIII`
`IVltIlrIIltIII`
`IVltIltIIIltII`
`IVltIIltIltIII`

Solution :N p-dichlorobenzene, the two equal dipoles are in opposite direction, hence the molecule has zero DIPOLE moment. In o-and m-dichlorobenzenes, the two dipoles are at `60^(@) and 120^(@)` APART respectively, and thus according to parallelogram law of forces, the dipole moment of o-dichlorobenzene is much HIGHER than that of m-isomer. Lastly, toluene with a +I group possesses I ittle dipole moment. Thus the overall order is

Posted on 04 Dec 2021, this text provides information on Class 12 related to Chemistry in Class 12. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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