Which of the following is correct order
1) CuCl > NaCl : covalent character
2) BeO < MgO < CaO < BaO : ionic character
3) AlCl3 < MgCl2 < NaCl : solubility in H2O
4) all are correct
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CuCl > NaCl : covalent character
BeO < MgO > CaO > BaO : ionic character
AlCl3 < MgCl2 < NaCl : solubility in H2O
1 & 3 is correct
second is wrong
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