All steps are used for the extraction of metals except

All steps are used for the extraction of metals except

Explanation

The extraction of metals and their isolation occurs over a few major steps:

وہ اقدامات دھاتوں کو نکالنے کے لیے استعمال کیے جاتے ہیں۔

Concentration of Ore – Here the ore is separated from earthy impurities.

Isolation of metal from concentrated Ore – Here the ore is converted to its oxide form and then reduced. The steps involved are either calcination or roasting and then heating with a reducing agent.

Purification of the metal – Here the metal is purified for practical purposes.