Question

The ore that can be concentrated by magnetic separation method is:

• A. bauxite $(A{l}_2{O}_3.x{H}_{2}O)$
• B. pyrolusite $\left(Mn{O}_2\right)$
• C. cuprite $\left(C{u}_{2}O\right)$
• D. zincite $\left(ZnO\right)$

Answer 1

The correct option is B pyrolusite $\left(Mn{O}_2\right)$

The ore that can be concentrated by magnetic separation method is pyrolusite $\left(Mn{O}_2\right)$.
In this method, the ferromagnetic and non-magnetic particles in the ore are separated by an electromagnetic separator.