What are the main differences between Calcinations and roasting?

Write short notes on Froth reduction process.

Write short notes on Carbon reduction process

Write short notes on Hydrometallurgy.

Write short notes on Zone of refining.

Write short notes on Alumino thermite process

Differentiate between:

(i) Gravity separation and magnetic separation method.

(ii) Carbon reduction and electrolytic reduction process.

Differentiate between carbon reduction and thermite process.

How are metal generally extracted from ores and purified?

Give a brief account for the following process.

i) Electrometallurgy

ii) Carbon reduction

Describe the smelting process in the extraction of metal from their ores.

Give a brief account for the following terms:

i) Smelting process

ii) Alumino thermite process