Q.

The quantity of charge required to obtain one mole of aluminium from Al2O3 is

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a

1 F

b

6 F

c

3 F

d

2 F

answer is C.

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Detailed Solution

The quantity of charge required to obtain one mole of aluminium from Al2O3 is equal to number of electrons required to convert Al2O3 to Al.                   Al3+(aq)⟶+3eAl(s)Hence, total 3F is required.
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