Question

what is zone refining​

Answer 1

Answer:

it is the process of the impurities are more soluble in the melt than the solid state metal. during this process pure metal crystallises out of the metal. the impurities are passed on to the metal.this method is used to purify the silcon, germanium and galium.

Explanation:

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Answer 2

$\huge{\underline{\textrm{\red{Zone refining:-}}}}$

• This method is based on the principle that the impurities are more soluble in the melt than in the solid state of the metal.
• A mobile heater surrounding the rod of impure metal is fixed at its one end .
• The molten zone moves along eith the heater which is moved forward.
• As the heater moves forward, the purebmetal crystallises out of thr melt left behind and the impurities pass on into yhe adjacent new molten zone created by movement of heaters.