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Aluminium oxide may be electrolysed at 1...

Aluminium oxide may be electrolysed at `1000^(@)`C to furnish aluminium metal (Atomic mass = 27 amu, 1 Faraday = 96500 Coulomb). The cathode reaction is `Al^(3+) + 3e^(-) rightarrow Al`. To prepare 5.12 kg of aluminium metal by this method would require:

A

`5.49xx10^(1)C` of electricity

B

`5xx49xx10^(4)" Co of electricity"`

C

`1.83 xx10^(7) "C of electricity"`

D

`5.49xx10^(7) "C of electricity"`

Text Solution

Verified by Experts

The correct Answer is:
D
`9g-96500c" " 5.12xx10^(3)g-?`
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