Question: The formation of molecular complex $\mathrm{BF}_{3}-\mathrm{NH}_{3}$ results in a change in hybridisation of boron
from $s p^{3}$ to $s p^{3} d$
from $s p^{2}$ to $d s p^{2}$
from $s p^{3}$ to $s p^{2}$
from $s p^{2}$ to $s p^{3}$
Correct Option: , 4
Solution:
$\mathrm{CH}_{2} \mathrm{Cl}_{2}$ has lowest dipole moment
