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Chemistry
Which of the following statements is false?
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Q. Which of the following statements is false?
AIPMT
AIPMT 1994
A
Radon is obtained from the decay of radium
29%
B
Helium is inert gas
8%
C
Xenon is the most reactive among the rare gases
16%
D
The most abundant rare gas found in the atmosphere is helium
47%
Solution:
The amount of noble gases present in atmosphere (in percent by) is given below:
$ \, \, \, \, \, \, Element \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, Abundance$
$ \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, $ (Volume%)
$\, \, \, \, \, \, \, \, \, He \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, 5.24 \, \times \, 10^{-4}$
$\, \, \, \, \, \, \, \, \, Ne \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, 1.82 \, \times \, 10^{-3}$
$\, \, \, \, \, \, \, \, \, Ar \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, 0.934$
$\, \, \, \, \, \, \, \, \, Kr \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, 1.14 \, \times \, 10^{-3}$
$\, \, \, \, \, \, \, \, \, Xe \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, 8.7 \, \times \, 10^{-6}$
So, argon is most abundant, not helium.