Question

how is copper extracted from a low grade ore of it?

Answer 1

1) Copper can be obtained from low grade ore through the process of leaching* using acid or bacteria.
 *leaching is process in which ore is treated with suitable reagent which dissolves ore but not the impurities.
2) Reduction:-
 Then this solution containing copper is treated with scrap iron or H2 to get the copper.
Cu2+(aq) + Fe → Cu(s) + Fe2+(aq)
Cu2+(aq) + H2(g) → Cu(s) + 2H+(aq)

(Hope that helps)

Answer 2

$\underline\bold{Answer}$

➡Firstly Ore undergoes the process of Leaching , in which it is treated with suitable reagents that seperates ore from impurities .

➡Now the copper goes through reduction process . As copper as lower reactivity than hydrogen so it is reduced using hydrogen .

Cu^2 + H2 ======> Cu + H2

$\underline\bold{Thanks}$