The method of zone refining of metals is based on the priniciple of

Refining is

Write note on zone refining .

Zone refining is based on

In electrolytic fefining of cooper, pure Cu os used as anode. (B) Zone refining is based on the principle that impurities are more solutble in the melt than in the solid states of the metal. (D) Very pure Zr may be obtained by Galvanisation. (E) In copper smelting hot air is used to convery Cu_(2) S to CuSO_(4).

Which of the following statements are correct related to metallurgy? (A) In electrolytic refining of copper, pure Cu is used as anode. (B) Zone refining is based on the principle that impurities are more soluble in the melt than in the solid state of the metal. (C) (C) TiI_4 upon heating will give pure Ti. (D) Very pure Zr may be obtained by galvanisation (E) In copper smelting, hot air is used to convert to CuSO_4 The correct answer is

(A): High purity gallium for semiconducting purpose can be obtained by zone refining (R): Zone refining works on the principle of fractional crystallisation, leading to high purity

The process of zone refining is used for

Decribe a method for the refining of nickel.