Question

In the process for refining of aluminium, the fused materials from three different layers and they remain separated during electrolysis also. This is because

• A. the upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode
• B. there is special arrangement in the cell to kept the layers separate
• C. the $3$ layer have different densities
• D. the $3$ layers are maintained at different temperatures

Answer 1

The correct option is A the upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode

In the process for refining of aluminium, the fused materials from three different layers and they remain separated during electrolysis also because the upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode.

Hence, Option "A" is the correct answer.