Question

Define: Calcination and roasting method and bayers and halls process ​

Answer 1

Answer:

Hey mate here is your answer....

The Hall–Héroult process is the major industrial process for smelting aluminium. It involves dissolving aluminium oxide (alumina) (obtained most often from bauxite, aluminium's chief ore, through the Bayer process) in molten cryolite, and electrolysing the molten salt bath, typically in a purpose-built cell.

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Its Shivika Tiwari....