What is the hybridization of $Xe$ in $XeF_2$?

Total number of vacant orbitals in the valence shell of sulphur when it undergoes the formation of $SF_4$.

$KI + MnO_2 + H_2SO_4 \to$ Vapours $(B) +$ other products
Vapours $(B) + K_2S_2O_8 \to (C) + (D)$
$(D) \xrightarrow{(B)}$ Brown $(E)$
Hybridisation of central atom in $(E)$ is

Match List-$I$ with List-$II$ :

$LIST$-$I$ (Hybridization)	$LIST$-$II$ (Orientation in Space)
$A$. $sp^3$	$I$. Trigonal bipyramidal
$B$. $dsp^2$	$II$. Octahedral
$C$. $sp^3 d$	$III$. Tetrahedral
$D$. $sp^3 d^2$	$IV$. Square planar

Choose the correct answer from the options given below :

What type of bonds can the given electronic configuration of the excited state of $C$ form?

Describe the shapes of $BF_3$ and $BH_4^-$. Assign the hybridisation of boron in these species.