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
Correct Answer:
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Q2: Powder metallurgy is _.
A) refining of metal
Q3: Roasting is _.
A) forming metal parts using
Q4: Smelting is _.
A) heating an ore in
Q5: Electrometallurgy is _.
A) refining of metal ores
Q6: Which of the following describes gangue?
A) the
Q8: Identify the substances that are homogeneous, naturally
Q9: Which of the following processes is used
Q10: Hydrometallurgy is _.
A) refining of metal ores
Q11: Which of the following is a general
Q12: Which of the following is an example
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