The ease of liquefaction of noble gases decreases in the order

Options

A. `He gt Ne gt Ar gt Kr gt Xe`
B. `Xe gt Kr gt Ar gt Ne gt He`
C. `Kr gt Xe gt He gt Ar gt Xe`
D. `Ar gt Kr gt Xe gt He gt Ne`.

Answer

B

Explanation

The case of liquification of Noble gases depends upon the magnitude of van der Waal's forces and this increases with increase in size and atomic weight so down the group, ease of liquification increases.