Question

& 4. How aluminium is reduced from molten alumina? Give the related
Chemical equation? ( 3o. words) ? ​

Answer 1

well idk this so pls ask another one.

Answer 2

Al₂O₃⇒ 2Al³⁺ + 3O²⁻

Explanation:

• Electrolysis is being used to extract it. The ore is first reduced to pure aluminium oxide through Bayer's process, and then electrolyzed in solution in molten cryolite, which is another aluminium compound.

• The melting point of the alumnia is decreased by dissolving it in a mixture of molten cryolite and fluorspar.
• Thereafter, it's electrolyzed in a rectangular steel tank with a carbon covering which it serves as the cathode.

• A collection of thick carbon rods hanging from the top into the fused Al2O3 works as an anode.

• The temperature should be kept between 1200 and 1310 ° C..

• At the anode, oxygen is produced.