When copper pyrites is roasted in excess of air, amixture ofCuO + FeO is formed . FeO is present as impurities . This can be removed as slag during reduction of CuO . The flux added to form slag is

When copper pyrites is roasted in excess of air, amixture ofCuO + FeO

1.	When copper pyrites is roasted in excess of air, amixture ofCuO + FeO is formed . FeO is present as impurities . This can be removed as slag during reduction of CuO . The flux added to form slag is
Answer» `SiO_2` which is an acid FLUX Lime STONE which is a BASIC flux `SiO_2` which is acidic flux CAO which is basic flux. Solution :N//A