In which of the following molecule (observed) is found to be greater than (theoretical) :

Question

In which of the following molecule $\mu$ (observed) is found to be greater than $\mu$ (theoretical) :

Prashant Kotian · Accepted Answer

Correct answer: D. Step 1: A greater observed dipole moment than theoretical indicates that structural components or polar bonds are forced closer together than their ideal geometry assumes. Step 2: In o-chlorophenol, strong intramolecular hydrogen bonding occurs between the hydrogen of the hydroxyl group (-OH) and the chlorine atom (-Cl). This electrostatic attraction pulls the two groups closer, reducing the bond angle between C-O and C-Cl to less than 60°. Step 3: The reduction in this angle causes the individual polar bond dipoles to align more closely, resulting in a net observed dipole moment that exceeds the theoretical value. This corresponds to option (d).

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