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NTA Abhyas JEE Main2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

Blister copper is refined by stirring molten impure metal with green logs of wood because such a wood liberates hydrocarbon gases (like C H 4 ). This process X is called ________ and it is used to purify the metal that initially contain impurities of Y. Y is _______.

Options

  1. AX = poling, Y = C u O 2
  2. BX = cupellation, Y = CuO
  3. CX = cupellation, Y = ZnO
  4. DX = poling, Y = C u 2 O

Correct answer

D. X = poling, Y = C u 2 O

Step-by-step solution

Poling is a purification process which is used for metals which contains their own oxide as impurity.

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