Pl answer

Asked by jain.pradeep | 26th Feb, 2020, 09:59: AM

Expert Answer:

In extraction of aluminium, lining of carbon acts as cathode and graphite acts as anode. During this process, graphite is oxidised in CO and CO2 . 
Chemical reactions are as follows-
A t space c a t h o d e space

A l to the power of plus 3 end exponent space plus 3 e to the power of minus space rightwards arrow A l


A t space a n o d e minus
space C plus O to the power of negative 2 end exponent rightwards arrow C O plus 2 e to the power of minus
C plus 2 O to the power of negative 2 end exponent rightwards arrow C O subscript 2 space end subscript plus 4 e to the power of minus

Answered by Ravi | 26th Feb, 2020, 03:19: PM