Chemistry-
General
Easy
Question
Wolframite ore is separated from tinstone ore by the process of
- Roasting
- Electromagnetic
- Smelting
- Calcination
The correct answer is: Electromagnetic
Wolframite ore 
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
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