Liquid $X$ is used in a bubble chamber to detect neutral mesons and gamma photons. Then, $X$ is

$XeF_{6}$ on partial hydrolysis gives a compound $X$,which has square pyramidal geometry. '$X$' is

Which statements are $NOT$ $TRUE$ about $XeO_{2}F_{2}$?
$A$. It has a see-saw shape.
$B$. $Xe$ has $5$ electron pairs in its valence shell in $XeO_{2}F_{2}$.
$C$. The $O-Xe-O$ bond angle is close to $180^{\circ}$.
$D$. The $F-Xe-F$ bond angle is close to $180^{\circ}$.
$E$. $Xe$ has $16$ valence electrons in $XeO_{2}F_{2}$.
Choose the correct answer from the options given below.

Which products are formed by the reaction of $XeF_6$ with silicon dioxide $(SiO_2)$?

Consider the following transformations:
$I. XeF_6 + NaF \to Na^+[XeF_7]^-$
$II. 2PCl_{5(s)} \to [PCl_4]^+[PCl_6]^-$
$III. [Al(H_2O)_6]^{3+} + H_2O \to [Al(H_2O)_5OH]^{2+} + H_3O^+$
Which of the above transformations are correct?

Which of the following is not correct for the given reaction sequence:
$XeF_6 + H_2O \rightarrow A + 2HF$
$XeOF_4 + H_2O \rightarrow B + 2HF$
$XeO_2F_2 + H_2O \rightarrow C + 2HF$