the carbon based reduction method is not used for extraction of

Options

A. tin from tin stone
B. iron from `Fe_(2)O_3`
C. aluminium from alumina
D. magnesium from `MgCO_3.CaCO_3`

Answer

C

Explanation

Highly electropositive metals like Al and Mg are not obtained of reduction of their oxides with carbon because they form their corresponding carbines. Instead they are obtained by electrolytic reduction of their fused salts, i.e., Al from `Al_(2)O_(3) ` and Mg from `MgCl_(2)`