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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

The following are some of the methods commonly employed for the extraction of metals from their ores. Which of the following methods is generally employed for the extraction of sodium?

Options

  1. AReduction of an oxide with coke
  2. BElectrolysis of an aqueous solution of a chloride
  3. CElectrolysis of a molten chloride containing C a C l 2
  4. DReduction of a chloride with more reactive metal

Correct answer

C. Electrolysis of a molten chloride containing C a C l 2

Step-by-step solution

Sodium metal, being strong reducing agent, is obtained by electrolytic reduction of molten chloride containing C a C l 2 in order to lower m.p. of the molten chloride.

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