How is carbon electrodes formed in an electrolytic aluminium smelting cell?(a) From Alumina(b) By Replacing the old electrodes(c) From coke and carbon dioxide(d) From coke and pitchI got this question in examination.Question is taken from Aluminum topic in division Metallurgical Industries of Chemical Technology

How is carbon electrodes formed in an electrolytic aluminium smelting

1.	How is carbon electrodes formed in an electrolytic aluminium smelting cell?(a) From Alumina(b) By Replacing the old electrodes(c) From coke and carbon dioxide(d) From coke and pitchI got this question in examination.Question is taken from Aluminum topic in division Metallurgical Industries of Chemical Technology
Answer» The CORRECT choice is (d) From coke and PITCH To explain: CARBON electrodes are formed continuously from coke and pitch. Pitch is a soft to hard and BRITTLE coal SUBSTANCE.

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