Which of the following is an incorrect relation based on Bent's rule?

Which of the following species has a regular tetrahedral structure?

Is there any change in the hybridisation of $B$ and $N$ atoms as a result of the following reaction?
$BF_{3} + NH_{3} \rightarrow F_{3}B \cdot NH_{3}$

Explain the structure and bonding in $SF_6$.

In which of the following molecules,the number of lone pairs of electrons on the central atom and the number of $d$-orbitals involved in the hybridisation of the central atom are the same?

Match the following List-$I$ (Hybridisation) with List-$II$ (Shape):

List-$I$ (Hybridisation)	List-$II$ (Shape)
$A$. $dsp^2$	$I$. Square planar
$B$. $sp^3$	$II$. Tetrahedral
$C$. $d^2sp^3$	$III$. Octahedral
$D$. $sp^3d$	$IV$. Trigonal bipyramidal