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General Principles and Processes of Isolation of Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryGeneral Principles and Processes of Isolation of Elements2 Marks
Question
Which methods are usually employed for purifying the following metals:
  1. Nickel.
  2. Germanium.
Mention the principle behind each one of them.
✓

Answer

  1. Nickel:- Mond Process
Principle the metal is converted into its volatile compound which is then decomposed to give pure metal at higher temperature.
  1. Germanium:- Zone refining
    Principle that the impurities are more soluble in the melt than in the solid state of the metal.

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