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During the electrolytic production of aluminium , the carbon anodes are replaced from time to time becauseA. carbon convents `Al_(2)O_(3)" to "Al`B. oxygen librated at the carbon anode reacts with anodes to form `CO_(2)`C. the carbon perevents atmosphere oxygen from coming in corbon with aluminumD. the xcarbon anode get decayed

Answer» Correct Answer - b
The oxigen librated attached the carbon anodes
`2C(s) + O_(2) (g) rarr 2CO(g)`
`C(s) + O_(2)(g) rarr CO_(2) (g)`
Thus, anode are replace frequentity


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