Copper is dissolved from its ore by H2SO4 in a percolation tank made of_________________?
Correct answer: D. Reinforced concrete lined with lead
- A. Wood
- B. Stainless steel
- C. High silicon iron (14% Si)
- D. Reinforced concrete lined with lead
Explanation
Sulfuric-acid leaching requires protection against acid attack, so the reinforced-concrete tank is lined with lead. The concrete provides structural strength while the lead lining supplies corrosion resistance.
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