• # question_answer Wolframite ore is separated from tinstone ore by the process of [BHU 2004] A) Roasting B) Electromagnetic C) Smelting D) Calcination

Wolframite ore $[FeW{{O}_{4}}]$ is present in tin stone as impurities and it has same mass per unit volume as that of tin stone. So it is separated by electromagnetic separator because wolframite is magnetic in nature hence it gets attracted by magnet while tin stone doesn't