Assertion : Dipole - dipole forces acting between the molecules possessing permanent dipole , are weaker than ion - ion interactions .
Reason : The attractive forces decrease with the increase of distance between the dipoles .

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion .
B. If both assertion and reason are true but reason is not the correct explanation of assertion .
C. If assertion is true but reason is false .
D. If both assertion and reason are false .

Answer

B

Explanation

Ends of the dipoles possess 'partial charges' which are always less than the unit electronic charge `(1.6xx10^(-19)C)` present in ions. Thus, dipole-dipole forces are weaker than ion-ion interactions.