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Q.
Wolframite ore is separated from tinstone ore by the process of
General Principles and Processes of Isolation of Elements
Solution:
Wolframite ore $\left[ FeWO _{4}\right]$ is present in tinstone as impurities and it has same mass per unit volume as that of tinstone. So it is separated by electromagnetic separator because wolframite is magnetic in nature; hence it gets attracted by magnet while tinstone doesn't.