Question

How to obtain metal from their oxides at the top of the extraction and middle of the series and at the bottom?

Answer 1

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 :Zn

ZnCO3-->ZnO+CO2

2ZnS+3O2-->2ZnO+2SO2

metals of high reactivity are obtained using electrolysis reduction

example:NaCl-->(Na+)+(Cl-)

the metals of reactivity are found in chlorides.......