Question

1.ZnO + HCl = Zn(OH)2 + 2HCl= 2.FeO+HCl= Fe(OH)2 + HCl= 3. MgO + HCl= Mg(OH)2+ HCl= 4. Al2O3 +HCl= Al(OH) + HC l =

Answer 1

1. ZnO + 2HCl = ZnCl2 + H2O
Zn(OH)2 + 2HCl = ZnCl2 + 2H2O 
2.FeO + 2HCl = FeCl2 + H2O
Fe(OH)2 + 2HCl = FeCl2 + 2H2O
3. MgO + 2HCl = MgCl2 + H2O
Mg(OH)2 + 2HCl = MgCl2 + H2O
4. Al2O3 + 6HCl = 2AlCl3 + 3H2O
Al(OH)3 + 3HCl = AlCl3 + 3H2O