The ease of liquefaction of noble gases increases in the
order
(a) He < Ne < Ar < Kr < Xe (b) Xe < Kr < Ne < Ar < He
(c) Kr < Xe < He < Ne < Ar (d) Ar < Kr < Xe < Ne < He
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Answer:
answer is option A
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The ease of liquefaction of noble gases increases in the order He<Ne<Ar<Kr<Xe
Explanation:
The more the atomic size of the noble gas, the higher the liquefaction because of the strong Van der waals force.
The atomic size of Xe is 216 pm and the atomic size of He is 31 pm thus the force of van der waal is strong in Xe and weak in Helium which in turn causes increase liquefaction in Xe and decrease liquefaction in He.
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