question_answer

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

A) \[CHC{{l}_{3}}\]                     

B)  

C)                 

D)

Correct Answer: D

Solution :

[d]

Due to steric repulsion among \[Cl\]-atoms observed \[\angle Cl\text{ }C\text{ }Cl\] is found to be greater

Than expected.

Bond angle between both C-\[Cl\] bonds is greater than \[60{}^\circ \] due to steric repulsion between both \[Cl\] - atoms, hence \[{{\mu }_{D}}\](observed) \[<{{\mu }_{D}}\](Theoretical)

Observed bond angle between both\[CN{{O}_{2}}\]bonds is found to be greater than \[60{}^\circ \]due to Steric repulsion, between both\[N{{O}_{2}}\], groups,

Hence \[{{\mu }_{D}}\] (observed) \[{{\mu }_{D}}\], (Theoretical)

Observed bond angle between C-O and C-Cl bond is found to be less than \[60{}^\circ \] due to intermolecular H-bonding present in it, hence \[{{\mu }_{D}}\] (observed) \[{{\mu }_{D}}\] (Theoretical).