Fluorine forms chemical compounds with

The colored discharge tubes used for advertising mainly contain .........

Match the compounds given in Column-$I$ with the shapes given in Column-$II$ and mark the correct option.

Column-$I$	Column-$II$
$(a) XeF_6$	$(i) \text{ Distorted Octahedral}$
$(b) XeO_3$	$(ii) \text{ Square planar}$
$(c) XeOF_4$	$(iii) \text{ Pyramidal}$
$(d) XeF_4$	$(iv) \text{ Square pyramidal}$

Argon is used:

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

Select the $INCORRECT$ statement regarding the following reactions:
$XeF_6 + \text{excess } H_2O \rightarrow 'X' + HF$
$XeF_6 + 2 \text{ moles } H_2O \rightarrow 'Y' + HF$