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JEE Main202227 Jul 2022Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Which of the following methods are not used to refine any metal? (A) Liquation (B) Calcination (C) Electrolysis (D) Leaching (E) Distillation Choose the correct answer from the options given below

Options

  1. AB and D only
  2. BA , B , D and E only
  3. CB , D and E only
  4. DA , C and E only

Correct answer

A. B and D only

Step-by-step solution

Electrolytic refining is a technique that is used for the extraction and purification of metals that are obtained by refining methods. The impure metal is used as an anode and the pure metal is used a cathode. Soluble salt from the same metal is used an electrolyte. Liquation process is used for the purification of the metal, which itself is readily fusible, but the impurities present in it are not, used for the purification of Sn and Zn , and for removing Pb from Zn - Aq alloy. Leaching is a process widely used in

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