According to Fajan rules , the percentage of covalent character in an ionic compound increases . If the cation is highly charged or the cation is small and the anion is large or the cation has pseudo inert gas configuration . As a result of increased covalent character , the melting point decreases and solubility in less polar solvent increases . The correct order of increasing covalent character is

According to Fajan rules , the percentage of covalent character in an

1.	According to Fajan rules , the percentage of covalent character in an ionic compound increases . If the cation is highly charged or the cation is small and the anion is large or the cation has pseudo inert gas configuration . As a result of increased covalent character , the melting point decreases and solubility in less polar solvent increases . The correct order of increasing covalent character is
Answer» LiCl , NACL, `BeCl_(2)` `BeCl_(2) , NaCl , LiCl` `NaCl , LiCl , BeCl_(2)` `BeCl_(2) , LiCl , NaCl` Solution :As the size of the cation increases the covalent CHARACTER DECREASES . Thus option (c) is correct , i.e., `NaCl LT LiCl lt BeCl_2`.