Periodic Classification and Periodic Properties 2 Question 9
«««< HEAD
9. Which one has the highest boiling point?
======= ####9. Which one has the highest boiling point?
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) $\mathrm{He}$
(b) $\mathrm{Ne}$
(c) $\mathrm{Kr}$
(d) $\mathrm{Xe}$
Show Answer
Answer:
Correct Answer: 9. (d)
Solution:
- As we move down the group of noble gases, molecular mass increases by which dipole produced for a moment and hence London forces increases from $\mathrm{He}$ to $\mathrm{Xe}$.
Therefore, more amount of energy is required to break these forces, thus boiling point also increases from $\mathrm{He}$ and $\mathrm{Xe}$.
