48. Iron filings can be separated from a heterogeneous mixture using the technique of : A.Sublimation B.Magnetization C.Sedimentation D.Evaporation
Answer: Option B Solution: The method of separation using magnets is used when one of the components is magnetic. So the heterogeneous mixture of iron filings and some other material (such as sulphur powder) can be separated by using magnets. Similarly, a mixture of sand and iron filings can be separated by magnet.
