1.

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

Answer» (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 .


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