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(b) Suggest different chemical processes used for obtaining a metal from its oxides for metals in themiddle of the reactivity series and metals towards the top of the reactivity series. Support your answerwith one example each.ĺĽ |
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Answer» Metals in middle of the reactivity series are found in its sulphide or corbonate ores.calcination is a process of heating the ore with limited or no supply of air.the products are metal oxide with carbon dioxide.roasting is a process of heating the ore with supply of air.products are metal oxide along with sulphur dioxide.example :ZnZnCO3-->ZnO+CO22ZnS+3O2-->2ZnO+2SO2metals of high reactivity are obtained using electrolysis reductionexample:NaCl-->(Na+)+(Cl-)the metals of reactivity are found in chlorides |
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