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Considerting Ellingham diagram, which of...

Considerting Ellingham diagram, which of the following metals can be used to reduce alumina -

A

`Cu`

B

`Fe`

C

`Mg`

D

`Zn`

Text Solution

Verified by Experts

The correct Answer is:
C
Lower the temperature of `1350^(@)C,(Mg,MgO)` line lies below the line of `(Al, Al_(2)O_(3))` in Ellingham diagram. Thus Mg is used to reduce `Al_(2)O_(3)` to Al.
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