ZONE REFINING, DISTILLATION, LIQUIFICATION

The correct match of column I with column II is: Column I (impure metals) a. Si, Ge b. Hg, Cd c. Cu, Ag d. Pb, Sn. Column II (refining process) (i) electrorefining, (ii) Zone refining, (iii) Liquation, (iv) Distillation

Refining or Purification OF Metal-(A)Thermal Refining (1)Distillation (2) Vapour Phase Refining (a)Mond’s Process (b)Ven-Arker (3)Amalgamation (4)Puling (5)Liquation (6)Zone-Refiling(7)Cupellation (8)Pudding (B)Electrolytic Refining

Liquification Of Gases

Purification OF Metal||Physical Method|| Liquification|| Distillation||Zone Refining|| Chemical Method|| Bessemerisation||Cupellation||Poling

(i) Explain zone refining method for refining of metals. (ii) Explain the van Arkel method for refining of metals.