Home
Class 12
CHEMISTRY
Zone refining is based on...

Zone refining is based on

Text Solution

Verified by Experts

Zone refining : Impurities are more soluble in the melt than in the .solid state of the metal. A circular mobile heater is fixed at one end of a rod of the impure metal. The molten zone moves along with the heater which is moved forward. As the heater moves forward the pure metal-crystallises out of the metal and impurities pass on into the adjacent molten zone. The process is repeated several times and the heater is moved in the same direction from one end to the other end. At one end, impurities get concentrated. This end is cut off.
Ex: Germanium.
Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER 12

    VGS PUBLICATION-BRILLIANT|Exercise Section - C|9 Videos

  • MODEL PAPER 12

    VGS PUBLICATION-BRILLIANT|Exercise Section - C|9 Videos

  • MODEL PAPER 10

    VGS PUBLICATION-BRILLIANT|Exercise SECTION-C|10 Videos

  • MODEL PAPER 3

    VGS PUBLICATION-BRILLIANT|Exercise SECTION-C|10 Videos

Similar Questions

Explore conceptually related problems

The process of zone refining is used for

(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

What is Zone refining ? Describe the principle involved in the purification of the metal by this method.

Electrolytic refining is used to purify which of the following metals ?

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

In zone - Refining method the molten zone :

In xone-refining method the molten zone

Outline the principles of refining of metals by the following methods. zone refining