Give reasons for the following : (i) MgCl_(2) is more covalent than NaCl (ii) CuCl is more covalent than NaCl.

Give reasons for the following : (i) MgCl_(2) is more covalent than N

1.	Give reasons for the following : (i) MgCl_(2) is more covalent than NaCl (ii) CuCl is more covalent than NaCl.
Answer» Solution :(i) Due to higher charge , `Mg^(2)` is more polarising than `Na^(+)` and hence `MgCl_(2)` is more covalent than NaCl. (ii) Due to PSEUDO INERT gas configuration , `CU^(+)` is more polarising than `Na^(+)` and hence CUCL is more covalent than NaCl .