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Extraction of aluminum can be understo...

Extraction of aluminum can be understood by

The molten electrolytes contains `Na^(+), AI^(3+), Ca^(2+)` but only AI gets deposited at cathode because :

A

Standard reduction potential of AI is more than those of Na & Ca

B

Standard oxidation potential of AI is more than those of Na & Ca

C

Disharge potential `AI^(3+)` is higher than `Na^(+) & Ca^(2+)`

D

Graphite reacts only with `AI^(3+)` and not with `Na^(+) & Ca^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A
It is a fact.
Hence, (A) is the correct answer.
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