Consider following properties of the noble gases.
I. They readily form compounds which are colourless.
II: They generally do not form ionic compounds.
III: Xenon has variable oxidation states in its compounds
IV : the smaller He and Ne do not form clathrate compounds.
Select correct properties.
A. I,II,III
B. II,III,IV
C. I,III,IV
D. (D) All
