Question

In the extraction of metals, which of the following statements are correct? a) Hgs and Cu2S are reduceable to Hg and Cu by roasting b) Fe and Zn can be obtained from Fe2O3 and ZnO by smelting c) Cr, Mn and Fe can also be obtained from Cr2O3 , MnO2 and Fe2O3 by aluminothermic process (a), (b)​

Answer 1

Answer:

here is the answer

Explanation:

please mark as brainlist

Answer 2

Explanation:

During roasting, sulphide ores are converted into metal oxides. Sometimes, they are converted to sulphates. The roasting of Cu

2

S,Ag

2

S and ZnS does not give metals. However, the roasting of HgS will give mercury metal. The reactions are as follows:

2HgS+3O

2

→2HgO+2SO

2

2HgO→2Hg+O

2