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प्रश्न
Name the method of refining of metals such as Germanium.
Write the principle of method used for the refining of germanium
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उत्तर १
Zone refining method is the most suitable method for refining metals like germanium (semiconductor).
उत्तर २
Zone refining: Principle − Impurities are more soluble in the molten state of metal (the melt) than in the solid state.
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संबंधित प्रश्न
Name the method used for the refining of zirconium.
What is meant by the term “chromatography”?
Name the method of refining which is Used to obtain semiconductor of high purity.
Why is an external emf of more than 2.2 V required for the extraction of \[\ce{Cl2}\] from brine?
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
Match the items of Column I with the items of Column II and assign the correct code:
| Column I | Column II |
| (A) Coloured bands | (1) Zone refining |
| (B) Impure metal to volatile complex | (2) Fractional distillation |
| (C) Purification of Ge and Si | (3) Mond Process |
| (D) Purification of mercury | (4) Chromatography |
| (5) Liquation |
Assertion: Zirconium can be purificed by Van Arkel method.
Reason: ZrI4 is volatile and decomposes at 1800 K.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
