Question

Which of the following term is not related to aluminium extraction?

• A. Serpek's process
• B. Hall-Herault process
• C. Thermite process
• D. Hoop's process

Answer 1

The correct option is C Thermite process

Metal oxides having very high melting points, e.g., oxides of $Cr,Mn,Ti,Mo,Fe,$, etc., are difficult to reduce by carbon reduction. These can be reduced by thermite reduction.

All other methods are used in the extraction of $Al$.

Hence, option C is correct.