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Question:

The carbon-based reduction method is not used for the extraction of: tin from SnO2, aluminium from Al2O3, iron from Fe2O3, magnesium from MgCO3, CaCO3

iron fromFe2O3

aluminium fromAl2O3

magnesium fromMgCO3,CaCO3

tin fromSnO2

Solution:

The correct options are B aluminium from Al2O3 and D magnesium from MgCO3, CaCO3. SnO2 and Fe2O3 undergoes reduction. But Al2O3 and MgCO3, CaCO3 does not.