Which of the following statement is false ?

Options

A. (a) Radon is obtaind from the decay of radium
B. (b) Helium is inert gas
C. (c) Xenon is the most reactive among the rare gases
D. (d) The most abundant rare gas found in the atmosphere is helium

Answer

D

Explanation

The amount of noble gases present in atmosphere (in precent by) is given below.

So, argon is most abundant, not helium.