Which of the following statements is false?

Question

Which of the following statements is false? (A) Radon is obtained from the decay of radium (B) Helium is inert gas (C) Xenon is the most reactive among the rare gases (D) The most abundant rare gas found in the atmosphere is helium

Tardigrade Admin · Accepted Answer

The amount of noble gases present in atmosphere (in percent by) is given below:

El e m e n t A b u n d an ce

(Volume%)

He 5.24 \times 1 0^{- 4}

N e 1.82 \times 1 0^{- 3}

A r 0.934

Kr 1.14 \times 1 0^{- 3}

X e 8.7 \times 1 0^{- 6}

So, argon is most abundant, not helium.

Q. Which of the following statements is false?

Radon is obtained from the decay of radium

Helium is inert gas

Xenon is the most reactive among the rare gases

The most abundant rare gas found in the atmosphere is helium

The amount of noble gases present in atmosphere (in percent by) is given below: ElementAbundance (Volume%) He5.24×10−4 Ne1.82×10−3 Ar0.934 Kr1.14×10−3 Xe8.7×10−6 So, argon is most abundant, not helium.

The amount of noble gases present in atmosphere (in percent by) is given below:
$El e m e n t A b u n d an ce$
(Volume%)
$He 5.24 \times 1 0^{- 4}$
$N e 1.82 \times 1 0^{- 3}$
$A r 0.934$
$Kr 1.14 \times 1 0^{- 3}$
$X e 8.7 \times 1 0^{- 6}$
So, argon is most abundant, not helium.