Magnetic Separation

Q. An ore of tin $Sn{O}_2$ containing $FeCr{O}_4$ is concentrated by:

1. magnetic separation
2. froth floatation
3. gravity separation
4. None of the above

Q.

Gangue particles can be removed from cassiterite ore by the process of _______.

1. calcination

2. magnetic separation

3. gravity separation

4. roasting