In electrometallurgy of aluminium, what will happen if graph... | Chemistry | SolveeIt | Solveeit

Today, August 19

Question

In electrometallurgy of aluminium, what will happen if graphite rods are not used as anode and are replaced by some other metal?

A

$O_2$ liberated at anode will react with aluminium to give back $Al_2O_3$

B

$F_2$ will be liberated at anode instead of $O_2$

C

The process of electrometallurgy will become non-spontaneous

D

Aluminium oxide splits into $Al^{3+}$ and $O^{2-}$ ions only in presence of graphite

Answer

$O_2$ liberated at anode will react with aluminium to give back $Al_2O_3$

Explanation

Solution

If some other metal is used as the anode other than graphite then the oxygen liberated at anode will convert some $Al$ to $Al_2O_3$ .