question_answer

The dipole moment of 1-methyl cyclobuta-1, 3-diene is \[0.36\,D\]. The dipole moment of 1,  2-dimethyl cyclobuta-1 -3-diene would be

A) \[0.36\,\,D\]                      

B) \[0.62\,\,D\]

C) \[0.51\]      

D) \[0.92\,\,D\]

Correct Answer: C

Solution :

\[(a,\,b)\Rightarrow \,1+ab>0\]                 \[1+ba>0\]                 \[\therefore \]                 \[\left( 1,\,\frac{-1}{2} \right)\,\in P,\,\left( \frac{-1}{2},\,-10 \right)\,\in P\]                 \[(1,\,-10)\,\notin P\]