Question

Write the name and principle of the method used for refining of
a. zinc
b. Germanium
c. Titanium

Answer 1

Answer:

Zinc : Distillation is used for refining zinc. Zinc is a low boiling metal the impure metal is evaporated and the pure metal is obtained as a distillate.

Germanium : Refining is used for refining Germanium. In this method is based on principle that the impurity are more soluble in the melt then in the solid state of the metal.

Titanium : Titanium is refined by van Arkel method. This method is used for removal of oxygen and nitrogen present as impurity. The crude metal is heated in an evacuated vessel with iodine to obtain metal iodide, which volatizers being covalent. Later this metal iodide is decomposed through electrical heating to obtain the pure metal.

Answer 2

Answer:

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