Give reason for the following:
 (a)LiCl is more covalent than KCl.
 (b)LiF has lower melting point than NaCl.
 (c)CuCl is more covalent than NaCl.

1 Answer

Answer :

Ans(a).Due to smaller size and high poalrising power of Li+ ion ,LiCl is more covalent than KCl. (b)Small cation Li+ ion highly polarizes large anion I- , LiI is more covalent and hence has lower melting point. ©Due to pseudo inert gas configuration, Cu+ is more polarizing than Na+ and hence CuCl is more Covalent NaCl.

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