Question

Blister copper is purified by which method​

Answer 1

Explanation:

electrolysis

Purification of copper

When copper is made from sulfide ores by the first method above, it is impure. The blister copper is first treated to remove any remaining sulfur (trapped as bubbles of sulfur dioxide in the copper - hence "blister copper") and then cast into anodes for refining using electrolysis.

Answer 2

Answer:

electrolytic refining

Explanation:

Copper is purified by electrolytic refining of blister copper.

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