Chemistry - CHEMICAL BONDING Question with Solution | TestHub

As per Fajan's rule:
(i) Higher the charge on cation/anion, higher will be the covalent nature.
(ii) For similar charges, a smaller cation will have more covalent nature.
Thus, correct order of covalent nature is:
${\text{BeCl}}_{\text{2}}\text{>}\text{LiCl}\text{>}\text{NaCl}$