Question

Write the cathode reaction in electrolytic reduction of alumina.​

Answer 1

Answer:

Electrolysis of the alumina/cryolite solution gives aluminium at the cathode and oxygen at the anode. 4Al³+ + 12e- → 4Al (aluminium metal at the (-)cathode) reduction.

Answer 2

Answer:

The positively charged aluminium ions (Al

3+

) are attracted to the cathode (negative electrode). The aluminium ions accept electrons from the cathode and get reduced to form aluminium atoms (or aluminium metal).

Explanation: