The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270 kg of aluminium metal from bauxite by Hall process is
A. `180 kg`
B. `270 kg`
C. `540 kg`
D. `90 kg`

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1 Answers

Correct Answer - D
`2Al_(2)O_(3)+underset(3xx12g)(3C)to3CO_(2)+underset(4xx27g)(4Al)`
`4xx27g` of Al are obtained when carbon anode consumed `= 12xx3 g`

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