The most blister form of copper is__________?
Correct answer: B. impure copper
- A. refined copper
- B. impure copper
- C. processed copper
- D. none of these
Explanation
Blister copper is the impure copper obtained after converting copper sulfide matte, typically containing about 98 to 99.5% copper along with sulfur and other impurities. It must undergo refining before becoming refined copper.
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