Which noble gas has the lowest boiling point?

Assertion $(A)$: The boiling points of noble gases increase from $He$ to $Xe$.
Reason $(R)$: The interatomic van der Waals' attractive forces increase from $He$ to $Xe$.
The correct answer is:

Fluorine forms chemical compounds with

Who among the following discovered $Argon$?

Which of the following compounds has a square pyramidal structure?

Assertion $(A)$: $Xe$ atoms in $XeF_2$ are $d^2 s p^3$ hybridised.
Reason $(R)$: $XeF_2$ molecule does not follow the octet rule.
Which of the following is correct?