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GK QUESTION#3221

Which method does NCERT describe as the most widely used for refining impure metals?

  1. APoling Refining
  2. BVapour-Phase Refining
  3. CLiquation refining
  4. DElectrolytic RefiningCorrect answer
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Answer

D. Electrolytic Refining

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Explanation

NCERT describes electrolytic refining as the most widely used method for refining impure metals. The impure metal commonly forms the anode and purified metal deposits at the cathode. Poling and vapour-phase refining have more specific applications; liquation is a separate refining method.

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