Question

suggest different chemical processes used for obtaining a metal from its oxides for metals in the middle of the reactivity series and metals towards the top of the reactivity series. give an example to support your answer.

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

Answer 2

For obtaining metals that are in middle of reactivity series ,their oxides of such metals can be reduced by coke (carbon) which acts as a reducing agent

2Fe2O2+3c-> 4Fe+3Co2