Question

how is the method of extraction of metals high up in reactivity series different from that for metals in middle? Why the same process cannot be applied for them?
explain giving equation, extraction of sodium

Answer 1

metals like

Na are of high reactivity which can be extracted by Electrolysis

NaCl -------> Na + Cl

metals of mid reactivity can be extracted from

either from roasting or calcination

ZnCO3------> ZnO + CO2

OR

ZnS + O2 --------> ZnO + SO2

and from their oxides by

2ZnO + C(COKE)---------> 2Zn + CO2