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AP EAMCET2012Chemistryp Block Elements (Group 15, 16, 17 & 18)

Assertion (A) The boiling points of noble gases increases from He to Xe. Reason (R) The interatomic van der Waals' attractive forces increases from He to Xe . The correct answer is

Options

  1. ABoth (A) and (R) are true, and (R) is the correct explanation of (A)
  2. BBoth ( A ) and ( R ) are true, and ( R ) is not the correct explanation of (A)
  3. C(A) is true but (R) is not true
  4. D(A) is not true but (R) is true

Correct answer

A. Both (A) and (R) are true, and (R) is the correct explanation of (A)

Step-by-step solution

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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