Question

how metals are extracted from their ores

Answer 1

metal extracted depend on the reactivity of metals like by carbon carbon dioxide carbon monoxide

Answer 2

Extraction of metals from their ores include four main processes-

1. Concentration of ore
    (i) Magnetic Separation
    (ii) Hydraulic Washing
    (iii) Froth Floatation
    (iv) Leaching

2. Conversion of ore to its oxide
    (i) Roasting
    (ii) Calcination

3. Reduction of oxide to metal
    (i) Electrolysis
    (ii) Reducing Agents
    (iii) Thermal Decomposition

4. Refining of impure metal
    (i) Distillation
    (ii) Liquation
    (iii) Oxidation
    (iv) Electrorefining