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Isolation of Elements question

2013 · Shift 2 · Q1
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Isolation of Elements question

2013 · Shift 2 · Q1

JEE AdvancedChemistryIsolation of ElementsMultiple correct+3 / −0.75
The carbon–based reduction method is NOT used for the extraction of
  1. A
    tin from SnO2SnO_2SnO2​
  2. B
    iron from Fe2O3Fe_2O_3Fe2​O3​
  3. C
    aluminium from Al2O3Al_2O_3Al2​O3​
  4. D
    magnesium from MgCO3MgCO_3MgCO3​.CaCO3CaCO_3CaCO3​
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