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JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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Analyzing +4 | -1
Assertion (A) : Dipole moment of o-dichloro benzene is larger than the theoretical value.

Reason (R): Due to dipole-dipole repulsion of two Cl{Cl}-atoms in ortho position bond angle is greater than 60∘60^{\circ}.
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Correct option: D
A\mathbf{A} is false but R\mathbf{R} is true.
The correct answer is D (A\mathbf{A} is false but R\mathbf{R} is true) because the dipole moment of o-dichlorobenzene is *smaller* than the theoretical value due to the vector addition of the bond dipoles, and the reason is correct that the bond angle is greater than 60 degrees due to repulsion.

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