In the purification of a metal (M), what all will act as anode, cathode and electrolyte. Explain with an example.

Explain the following technique used in concentration of ore:

Gravity separation method.

Explain the following technique used in concentration of ore:

Froth flotation process.

Explain the following technique used in the concentration of ore:

Magnetic separation method.

Discuss the extraction of iron from hematite as per the following steps:

Concentration of ore. 

Discuss the extraction of iron from hematite as per the following steps:

Reduction of oxide to metal (along with chemical equation)

Discuss the extraction of iron from hematite as per the following steps:

Diagram of blast furnace.