Chemistry - Complete s-block Question with Solution | TestHub

lattice enthalpy$\propto \frac{1}{\mathrm{S}\mathrm{o}\mathrm{l}\mathrm{u}\mathrm{b}\mathrm{i}\mathrm{l}\mathrm{i}\mathrm{t}\mathrm{y}}$
Since the lattice enthalpy follow the order
$\text{LiF}\text{>}\text{NaF}\text{>}\text{KF}\text{>}\text{RbF}$
Hence, the correct order of solubility is
$\mathrm{L}\mathrm{i}\mathrm{F}<\mathrm{N}\mathrm{a}\mathrm{F}<\mathrm{}\mathrm{K}\mathrm{F}\mathrm{}<\mathrm{R}\mathrm{b}\mathrm{F}$