Consider the following statements and pick out the wrong one.
1) The solubility, thermal stability and the basic character of the hydroxides of alkaline earth metals increases from Mg(OH)2 to Ba(OH)2
2) The dehydration of hydrated chlorides, bromides and iodides of Ca, Sr and Ba can be achieved on heating
3) The chlorides of both beryllium and aluminium are soluble in organic solvents and are used as Lewis acids.