Question

what is bayer's process and hall's process of extraction of aluminium

Answer 1

The Bayer process is the principal industrial means of refining bauxite to produce alumina(aluminium oxide). Bauxite, the most important ore of aluminium, contains only 30–60% aluminium oxide (Al2O3), the rest being a mixture of silica, various iron oxides, andtitanium dioxide.[1] The aluminium oxide must be purified before it can be refined to aluminium metal.
The Hall–Héroult process is the major industrial process for smeltingaluminium. It involves dissolvingaluminium 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.

Answer 2

The description about Hall's and Bayer's process is as follows:

Explanation:

• The Hall's process is the industrial process that is involves the smelting of aluminium. This process involves the dissolution of aluminium oxide in molten cryolite. This is followed by electrolysis process to built cell.
• The Bayer process is the metal extraction process of aluminium in which the aluminium is refined from bauxite ore. The ore is grounded and digested in caustic solution to obtain aluminium.

Learn more about aluminium:

The colour of aluminium Aluminium Sulphate in water: https://brainly.in/question/7939176