Assertion (A) The boiling points of noble gases increases from He to Xe. Reason (R) The interatomic van der…

Assertion (A) The boiling points of noble gases increases from He to Xe. Reason (R) The interatomic van der Waals' attractive forces increases from $\mathrm{He}$ to $\mathrm{Xe}$. The correct answer is
  1. Both (A) and (R) are true, and (R) is the correct explanation of (A)
  2. Both $(\mathrm{A})$ and $(\mathrm{R})$ are true, and $(\mathrm{R})$ is not the correct explanation of (A)
  3. (A) is true but (R) is not true
  4. (A) is not true but (R) is true

Solution

As the size of noble gases increases from He to Xe, van der Waals' forces increases and due to which boiling point increases.

Asked in: AP EAMCET 2012

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