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Question: Answered & Verified by Expert
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
Chemistryp Block Elements (Group 15, 16, 17 & 18)TS EAMCETTS EAMCET 2012
Options:
  • A Both (A) and (R) are true, and (R) is the correct explanation of (A)
  • B Both $(\mathrm{A})$ and $(\mathrm{R})$ are true, and $(\mathrm{R})$ is not the correct explanation of (A)
  • C (A) is true but (R) is not true
  • D (A) is not true but (R) is true
Solution:
1815 Upvotes Verified Answer
The correct answer is: Both (A) and (R) are true, and (R) is the correct explanation of (A)
As the size of noble gases increases from He to Xe, van der Waals' forces increases and due to which boiling point increases.

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