Leaching Is ________

question 36

Multiple Choice

Leaching is ________.

• A) melting an ore and separating it from the lower density gangue
• B) selectively dissolving a metal in solution to separate it from its ore
• C) the process of heating an ore to drive off volatile compounds
• D) heating an ore in the presence of oxygen or another substance to purify the ore and obtain the liquid metal
• E) heating an ore in the presence of oxygen or another substance to cause a chemical reaction that drives off newly formed volatile compounds

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