Advertisements
Advertisements
Question
The solubility order for alkali metal fluoride in water is ______.
Options
LiF < RbF < KF < NaF
RbF < KF < NaF < LiF
LiF > NaF > KF > RbF
LiF < NaF < KF < RbF
MCQ
Fill in the Blanks
Solution
The solubility order for alkali metal fluoride in water is LiF < NaF < KF < RbF.
Explanation:
The higher the lattice enthalpy, the lower the solubility, i.e.
lattice enthalpy `∝ 1/"Solubility"`
Since the lattice enthalpy of alkali metals follows the order:
Li > Na > K > Rb
Hence the correct order of solubility is:
LiF < NaF < KF < RbF
shaalaa.com
Is there an error in this question or solution?
