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The primary commercial source for aluminium is ____________(a) coal(b) bauxite(c) magnetite(d) pyriteThe question was posed to me in an interview.The origin of the question is Wrought Aluminium and it’s Alloys topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes

Answer»

Right option is (b) bauxite

The explanation: Aluminium can be OBTAINED from several sources. For EXAMPLE, it is FOUND in several CLAYS and rocks. But the primary source for aluminium is bauxite ORES. Bauxite contains aluminium and some impurities.



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