Question

Which factor is most responsible for the increase in boiling points of noble gases from $He$ to $Xe$?

• A. Decrease in $I.E.$
• B. Monoatomic nature
• C. Decrease in polarisability
• D. Increase in polarisability

Answer 1

The correct option is D Increase in polarisability

Polarisability increases with increase in size. So, from $He$ to $Xe$ as size increases, polarisability increases.