In clathrates of $Xe$ with water,what is the type of bonding between $Xe$ and water molecules?

Which noble gas is most abundant in the atmosphere?

$SbF_5$ reacts with $XeF_4$ to form an adduct. The shapes of cation and anion in the adduct are respectively:

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:

Identify the inert gas used for filling balloons.

Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.