What is the hybridization of the central atom in $SiF_6^{2-}$ and $[Sn(OH)_6]^{2-}$?

Two hybrid orbitals have a bond angle of $120^o$. The percentage of $s-$ character in the hybrid orbital is nearly ............. $\%$

Hybridization is due to the overlapping of

Which is the correct statement?
As the $s$-character of a hybrid orbital decreases:
$(I)$ The bond angle decreases
$(II)$ The bond strength increases
$(III)$ The bond length increases
$(IV)$ Size of orbitals increases

Match the following:
| List-$I$ (Molecule/ion) | List-$II$ (Hybridisation) |
| :--- | :--- |
| $(A)$ $ICl_4^-$ | $(P)$ $sp^3$ |
| $(B)$ $NO_3^-$ | $(Q)$ $sp^3d$ |
| $(C)$ $PCl_4^+$ | $(R)$ $sp^3d^2$ |
| $(D)$ $SiF_6^{2-}$ | $(S)$ $sp^2$ |
| | $(T)$ $sp$ |

What is the type of hybridization of $N$ in $NH_3$?