Which of the following is primarily contained in the colored discharge tubes used for advertising?

Which element does not react with $F_2$?

Which of the following compounds of Xenon has a pyramidal geometry?

Why does the following reaction occur?
$XeO_{6(aq)}^{4-} + 2F_{(aq)}^{-} + 6H_{(aq)}^{+} \to XeO_{3(g)} + F_{2(g)} + 3H_2O_{(l)}$
What conclusion about the compound $Na_4XeO_6$ (of which $XeO_6^{4-}$ is a part) can be drawn from the reaction?

Which of the following statements is $NOT$ true for noble gases?

Which element out of $He$,$Ar$,$Kr$,and $Xe$ forms the least number of compounds?