Question

Zone refining is used for the

• A. concentration of an ore
• B. reduction of metal oxide
• C. purification of a metal
• D. purification of an ore

Answer 1

Answer: (C)

purification of a metal

Answer 2

Zone Refining (Fractional Crystallisation): This method is employed to get metal of very high purity i,e. ultra pure samples of $Ge Si , B , Ga$, In. This method is based on the fact that impurities are more soluble than the pure metal in the melt.