Some metals are extracted from their ores after some preliminary treatments by electrolysis (L), some by thermal decomposition(T), some by a combination of both processes (TL). Which set-up in the following for the extraction of iron, copper, and aluminium is correct?
- lron (L), copper (L) aluminium (T)
- lron (T) copper (L) aluminium (T)
- lron (TL) copper (TL) aluminium (TL)
- Iron (L) copper (T) aluminium (T)
-
lron (T) copper (L), aluminium (TL)
