Which of the following has the square planar structure?

$Xe + 2F_2 \xrightarrow{573 \ K, \ 60.70 \ bar} A$
What is $A$?

The reason for the noble gases to have low boiling and low melting points is:

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

At $143 \ K$,the reaction of $XeF_4$ with $O_2F_2$ produces a xenon compound $Y$. The total number of lone pair$(s)$ of electrons present on the whole molecule of $Y$ is . . . . .

Total number of lone pair of electrons in $XeOF_4$ is