What is the correct order of occurrence (\% by weight) in air of $\mathrm{Ne}, \mathrm{Ar}$ and…

What is the correct order of occurrence (\% by weight) in air of $\mathrm{Ne}, \mathrm{Ar}$ and $\mathrm{Kr}$ ?
  1. $\mathrm{Ne}>\mathrm{Ar}>\mathrm{Kr}$
  2. $\mathrm{Ar}>\mathrm{Ne}>\mathrm{Kr}$
  3. $\mathrm{Ar}>\mathrm{Kr}>\mathrm{Ne}$
  4. $\mathrm{Ne}>\mathrm{Kr}>\mathrm{Ar}$

Solution

The correct order of occurrence in air is $\mathrm{Ar}>\mathrm{Ne}>\mathrm{Kr}$

Asked in: AP EAMCET 2006

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