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

Options

A. Both (A) and (R) are true and (R) is correct explanation of (A)
B. Both (A) and (R) are true, and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. (A) is not true but (R) is true

Answer

A

Explanation

With increase in size, van der Waal.s forces increase and thus boiling point also increases.