Question

Write down the details of electrolysis of aluminium oxide. What is obtained on

cathode and anode? Write down the chemical equations for both the

electrodes separately. (3 marks)​

Answer 1

Answer:

In cathode aluminium was obtained

In anode oxygen was obtained

Explanation:

Cathod is negetive electrode and anode is positive electrode so aluminium is positive ion and oxygen is negetive ion

At Cathod : 2Al--------> 2Al 3+ + 6e-

At anode : 3O2 + 6e------> 3O2-

2Al 3+ + 3O2- --------> Al2O3