$XeO_4$ molecule is tetrahedral having

$MF + XeF_4 \to$ '$A$' ($M^{+} =$ Alkali metal cation). The state of hybridisation of the central atom in '$A$' and shape of the species are:

Which noble gas element from the following exhibits the highest number of different oxidation states?

Match the Xenon compounds in Column-$I$ with their structures in Column-$II$ and assign the correct code.

Column-$I$	Column-$II$
$(a) XeF_{4}$	$(i) \text{Pyramidal}$
$(b) XeF_{6}$	$(ii) \text{Square planar}$
$(c) XeOF_{4}$	$(iii) \text{Distorted octahedral}$
$(d) XeO_{3}$	$(iv) \text{Square pyramidal}$

Code: $(a) \quad (b) \quad (c) \quad (d)$

$Xe_{(g)} + 2 F_{2(g)} \xrightarrow[7 \text{ bar }]{873 \text{ K}} XeF_{4(s)}$
The ratio of $Xe : F_2$ required in the above reaction is

The chemical structures of $XeO_3$ and $XeOF_4$,respectively,are