Class 11 NEET Chemistry Chemical Bonding And Molecular Structure Part 1

HCl is polar (µ≠0) and He is non-polar (µ=0) gives dipole-induced dipole interaction.

Dipole -induced dipole forces /interactions are those which take place between a polar and a non polar molecule or with an atom. H2O and Alcohol both are polar, thus this is not an example of Dipole-Induce dipole. While HCl is a polar while helium is non-polar, thus it is an example of Dipole induce dipole. SiF4 and He atom are both non polar. Cl2 and CCl4 are both non-polar molecule. (In CCl4 chlorine atoms are bonded symmetrically with the carbon central atom thus it is non-polar similarly SiF4 is also non-polar)