JEE Main 201912 Apr, Evening shiftChemistryMediumIsolation of Elements99× since 2002The correct statement is :AOption A. leaching of bauxite using concentrated NaOH solution gives sodium aluminate and sodium silicateBOption B. the Hall-Heroult process is used for the production of aluminium and ironCOption C. pig iron is obtained from cast ironDOption D. the blistered appearance of copper during the metallurgical process is due to the evolution of CO₂CheckSkip · show solution
