MEDIUMMCQ SINGLEJEE Mains 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.