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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

Which of the following process is used based on the ability of metal being converted into its volatile compound?

Options

  1. AHydraulic washing
  2. BForth flotation
  3. CVapour phase refining
  4. DElectrolytic refining

Correct answer

C. Vapour phase refining

Step-by-step solution

Vapour phase refining: In this method, the metal is converted into its volatile compound and collected elsewhere. It is then decomposed to give pure metal. There are two requirements: (i) The metal should form a volatile compound with an available reagent. (ii) The volatile compound should be easily decomposable so that recovery is easy.

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