Question

zinc is a metal found in the middle of the reactivity series. mention the steps carried out for its extraction from its sulphide one. explain with chemical equation.

Answer 1

1)Calcination:metal is heated strongly in the presence of air.equation:ZnCo3 gives Zno+co2.2)Roasting:The reaction is carried out in absence of air and by converting Zno to Zn by adding c.equation:Zno+c gives Zn+co