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.
(a)LiCl is more covalent than KCl.
(b)LiF has lower melting point than NaCl.
(c)CuCl is more covalent than NaCl.