A) \[Al\]
B) \[Zn\]
C) \[Ag\]
D) \[Cu\]
Correct Answer: A
Solution :
Hoop?s process Þ Purification of Al Hall and Heroult process Þ Reduction of \[A{{l}_{2}}{{O}_{3}}\] Baeyer?s and Serpeck?s process Þ Concentration of Bauxite ore
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