Question

In which of the following the extent of interaction is proportional to $\frac{1}{r^6}$ where (r$=$ intermolecular distance).

• A. $N{H}_3-H_{2}O$ mixture
• B. Ice
• C. Xe in water
• D. Solid $I_2$

Answer 1

The correct option is C Xe in water

• Dipole-induced dipole interaction also named as Debye-force
  
• It is an attraction between a polar and non-polar molecule,

Xe is non-polar while $H_{2}O$ is a polar substance

Dipole-induced dipole interaction$\propto \frac{1}{r^6}$.