MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryMetallurgyExtraction of Aluminium
During the electrolytic reduction of aluminium, the carbon anodes are replaced from time to time because
A.the carbon anodes get decayed
B.the carbon prevents atmospheric oxygen from
C.oxygen liberated at the carbon anodes reacts with✓ Correct
D.carbon converts Al₂O₃ to Al
Explanation
During the electrolytic reduction of aluminium carbon anode reacts with oxygen and forms CO₂, so due to decay to CO₂ it must be replaced from time to time.